Students and Teachers Forum

1. What is semi conductor?

Materials that have the resistance levels between those of a conductor and an insulator are referred to as semiconductors. They are quite common, found in almost all electronic devices like radio, televsion, computer. Good examples of .....

2. Describe a simple experiment which illustrates to the truth of faraday's law of electromagnetic induction.

  Turn on the switch. Bring paper clips close to the nail. (What happens? How many paper clips can you pick up?) Repeat the experiment with the 9V battery. Repeat the experiment with the 9V and 12V batteries arranged in .....

3. (ख) तलको कवितांश पढी अन्त्यमा सोधिएका प्रश्नको उत्तर दिनुहोस् :
सीमा विलासको छैन स्वाद छैन गिलासको
खाँचो छ एउटै मात्र मित्रताको मिजासको ।

प्रश्नहरू
अ) विलासको सीमा र गिलासको स्वाद छैन किन भनिएको हो ?
आ) प्रस्तुत कवितांशको भाव के हो ?

१५.(ख) आ. मुख्य बुँदा यसप्रकार छन्ः हामीलाई जीवनमा सामान्य खाना र लाउने कुरा भए पुग्ने, सानो घर र .....

4. १. जोडा मिलाउनुहोस् :
समूह ‘क’               समूह ‘ख’
टुकी                       उलटपुलट
कायाकल्प             आत्मनिर्भर
स्वावलम्बी            उपासना
लम्पट                   सानो खालको पातलो डसना
                             मट्टितेल हालेर बालिने सानो खालको बत्ती
                             लागत

२. खाली ठाउँ भर्नुहोस् :
क) ‘उदय’ को विपरीतार्थी शब्द .......... हो । (अस्त, मस्त, व्यस्त)
ख) ‘एकान्त’ को पर्यायवाची शब्द .......... हो । (सज्जन, निर्जन, दुर्जन)
ग) ‘आलो’ .......... शब्द हो । (लघुतावाची, अनेकार्थी, पर्यायवाची)
घ) .......... श्रुतिसमभिन्नार्थी शब्द हुन् । (घ्याच्च–घुच्च, पारो–तारो, जाति–जाती)

३. वाक्यमा प्रयोग गर्नुहोस् :
कटहर काट्नु हुरुक्क

४.
(क) शुद्ध शब्द चिनेर लेख्नुहोस् :
अ) बिवेकशील, विवेकशील, विबेकशिल, विवेकशिल
आ) सक्तिहित, शक्तीहिन, षक्तिहिन, शक्तिहिन

(ख) शुद्ध पारी लेख्नुहोस् :
संस्कृतीसँग मानिसको आफ्नो इतिहाश र पहिचान जोडिनेभएकाले पनि त्यो सबैको हुन्छ

५. रेखाङ्कित शब्दको शब्दवर्ग पहिचान गर्नुहोस् :
मिहिनेती किसानले मिहिनेत गरी प्रशस्त अन्न उब्जायो र उसले जीवनमा सफलता पनि छिट्टै पायो ।

६. उपसर्ग र प्रत्यय लगाई एक एक ओटा वाक्य बनाउनुहोस् :
उपसर्ग : नि, स
प्रत्यय : उवा, एरो

१. टुकी — मट्टितेल हालेर बालिने सानो खालको बत्ती कायाकल्प — उलटपुलट स्वावलम्बी — .....

5. १. जोडा मिलाउनुहोस् :
समूह ‘क’                 समूह ‘ख’
स्वजन                    आकाश
आँचल                     पृथ्वी
आसमान                 अगेनु
अवनि                     पछ्यौरा
                              आकर्षक
                              आफन्त, नातेदार

२. खाली भर्नुहोस् :
क) ‘हात’ को पर्यायवाची शब्द .......... हो । (बाहु, पाउ, चरण)
ख) ‘उठान’ को विपरीतार्थी शब्द .......... हो । (आरम्भ, बैठान, उडान)
ग) .......... अनेकार्थी शब्द होइन । (दर, दाना, छाना)
घ) .......... श्रुतिसमभिन्नार्थी शब्द हुन् । (पाली–पालि, नास–मास, तास–कास)

३. वाक्यमा प्रयोग गर्नुहोस् :
अन्तस्करण, हात्तीको मुखमा जिरा

४.
(क) शुद्ध शब्द चिनेर लेख्नुहोस् :
अ) विश्वशान्ति, बिश्वशान्ति, विश्बशान्ति, बिश्बशान्ति
आ) कुन्भकर्ण, कुभकर्ण, कुम्भकर्ण, कुङ्भकर्ण

(ख) शुद्ध पारी लेख्नुहोस् :
फेरी विभीषणले भने “लडाइँमाजितेको भुभाग स्वतः विजेताको हुन्छ ।”

५. शब्दवर्ग छुट्याउनुहोस् :
हामीहरू सेता हिमाल, कलकल बग्ने नदी र सुरिला रुख देखेर मोहित हुँदै प्रकृतिको काखमा विचरण गयौं ।

६.
(क) तलको अनुच्छेदबाट उपसर्ग लागेर बनेका दुई ओटा र प्रत्यय लागेका दुई ओटा शब्द पहिचान गरी लेख्नुहोस् :
धार्मिक क्षेत्रका व्यक्तिहरूले अचेल सञ्चारका क्षेत्रमा पनि हात हालेका छन् । ईश्वरीय शक्तिका बारेमा प्रश्स्त अध्ययन नगरी पण्डिन्याइँ देखाउँदा मानिस दुर्घटित पनि बनेको छ । प्रसिद्ध बन्ने नाममा मानिसले गर्ने क्रियाकलाममा समेत चनाखो बन्नुपर्ने देखिन्छ ।
(ख) तलका शब्दको समास वा विग्रह गर्नुहोस् :
दोसाँध, शोकले आकुल

१. स्वजन — आफन्त, नातेदार आँचल — पछ्यौरा आसमान — आकाश अवनि — अगेनु २. (क) बाहु (ख) बैठान (ग) .....

6. १. जोडा मिलाउनुहोस् :
समूह ‘क’          समूह ‘ख’
कवाज               पाउन नसकिने
पोल्टो               नियमअनुसार नभएको
औपचारिक        सेवा
अप्राप्त               सैनिक तालिम
                        पोको पार्न पयोग गरिने पटुका आदिको फेरो
                        कुनै काममा व्यस्त

२. खाली ठाउँ भर्नुहोस् :
क) ‘उचाल’ को विपरीतार्थी शब्द .......... हो । (समात, ओराल, कुचाल)
ख) ‘नदी’ को पर्यायवाची शब्द .......... हो । (सरिता, सरला, असला)
ग) ‘कैंडा’ .......... शब्द हो । (अनेकार्थी, पर्यायवाची, लघुतावाची)
घ) .......... श्रुतिसमभिन्नार्थी शब्द हुन् । (पत्थर–कोतर, हिसाब–किताब, डामी–दामी)

३. वाक्यमा प्रयोग गर्नुहोस् :
निवर्तमान, हात्ती आयो फुस्सा

४. (क) शुद्ध शब्द चिन्नुहोस् :
अ) शिलवती, शीलवती, सिलवती, शीलवती
आ) अष्टसिद्धि, अष्टसिद्धी, अस्टासिद्धि, अष्टशिद्धि

(ख) शुद्ध पारी लेख :
विश्वयापीकरणमा उपभोक्ताहरूलाई वस्तुहरूछान्ने अबसर हुन्छन् ।

५. शब्दवर्ग पहिचान गर्नुहोस् :
हाम्रो झन्डाको किनारामा अङ्कित निलो रङलाई हेरेर नै हामी अरू देशसँग गर्व गर्दै भन्न सक्छौं – “हामी शान्तिका अनुयायी अनि पुजारी हौं ।”

६. (क) उपसर्ग र प्रत्यय लगाई एक एक ओटा शब्द बनाउनुहोस् :
उपसर्ग  ः अधि, बद
प्रत्यय  : आवट, अनीय

(ख) समास वा विग्रह गर्नुहोस् :
घरमा लागि खर्च, जीवनज्योति

१. कवाज – सैनिक तालिम पोल्टो – पोको पार्न प्रयोग गरिने पटुका आदिको फेरो औपचारिक – .....

7. १. जोडा मिलाउनुहोस् :
समूह ‘क’         समूह ‘ख’
ताजा चित्र        उतार्ने पारदर्शी कागज
सर्वोपरि           पृथ्वी
ट्रेसिङ पेपर      आकाश
धरा                 सबैभन्दा बढी
                       धेरै
                      आलो

२. खाली ठाउँ भर्नुहोस् :
क) ‘आगत’ को विपरीतार्थी शब्द .......... हो । (स्वागत, भागत, अनागत)
ख) ‘गरल’ .......... शब्द हो । (सरल, विष, तरल)
ग) ‘कमल’ .......... शब्द हो । (पर्यायवाची, लघुतावाची, अनेकार्थी)
घ) .......... श्रुतिसमभिन्नार्थी शब्द हुन् । (थिचो–मिचो, खस्याक–खुसुक, आदि–आधी)

३. वाक्यमा प्रयोग गर्नुहोस् :
अवैतनिक, धोती खुस्कनु

४.
(क) शुद्ध शब्द चिनेर लेख्नुहोस् :
अ) दूराशय, दुराशय, दुरासय, दुराषय
आ) कीर्तिमान, किर्तिमान, कीर्तिमान्, कृर्तिमान्

(ख) शुद्ध पारी सार्नुहोस् :
आशादेवीले भनिन् “आहा मेरो देश कति सुन्दर र मनमोहक छ ।

६. उपसर्ग र प्रत्यय लगाई एक एक ओटा वाक्य बनाउनुहोस् :
उपसर्ग दुष, बे
प्रत्यय ई, ओट
 

१) ताजा — आलो सर्वोपरि — सबैभन्दा धेरै ट्रेसिङ पेपर — चित्र उतार्ने पारदर्शी कागज धरा — .....

8. १. जोडा मिलाउनुहोस् :
समूह ‘क’             समूह ‘ख’
टुकी                     उटलपुटल
कायाकल्प            आत्मनिर्भर
स्वावलम्बी           उपासना
लम्पट                  सानो खालको पातलो डसना
                            मट्टितेल हालेर बालिने सानो खालको बत्ती
                            लागत

२. खाली ठाउँ भर्नुहोस् :
क) ‘उदय’ को विपरीतार्थी शब्द .......... हो । (अस्त, मस्त, व्यस्त)
ख) ‘एकान्त’ को पर्यायवाची शब्द .......... हो । (सज्जन, निर्जन, दुर्जन)
ग) ‘आलो’ .......... शब्द हो । (लघुतावाची, अनेकार्थी, पर्यायवाची)
घ) .......... श्रुतिसमभिन्नार्थी शब्द हुन् । (घ्याच्च–घुच्च, पारो–तारो, जाति–जाती)

२. (क) अस्त (ख) निर्जन (ग) अनेकार्थी (घ) जाति र .....

9. Draw a neat diagram of mushroom and label it's any two parts.

.....

10. It is impossible to get a perfect machine in practical life, why?

Compound machines have low mechanical efficiencies because they have more moving parts and thus more friction to overcome.  Machines are not 100% efficientbecause some of the work done by .....

11. Find value of tan 165

tan(165°) = tan(120°+45°)  tan(120°) = -√3  tan(45°) = 1  tan(A+B) = (tanA+tanB) / (1-tanAtanB)  Plugging those values in, we get  tan(165°) = (-√3+1) / (1 - .....

12. Clear me about artificial method of propagation of plants.

The process in which the vegetative part of plants such as root, stem and leaves take part  in the formation of new plants is called vegetative propagation. Artificial vegetative propagation is made by human beings for their different crop .....

13. What is a saprophyte? Write with an example.

A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals.   Rhizopus (bread .....

14. Calculate the density of the body whose mass is 50 kg and volume is 5m 3 .

We know that, Density is a measurement that compares the amount of matter an object has to its volume.   ρ = m /v ρ  = density m = mass V = volume Now,  By using the above formula you can solve .....

15. Cyclic quadrilateral

A quadrilateral whose vertices lie on the circumference of the circle is a cyclic quadrilateral. The 2 pairs of opposite angles are .....

16. A motorist drove 156 km at a constant speed. If he had driven 9 km per hour faster, he would had reduced the driving time by 45 minutes. Find the rate at which he actually drove.

A man drove 156 km at a constant rate. If he had driven 5 km per hour faster he would have made the trip in 45 minutes less time. How fast did he drive? Initiall, distance (d) = 156 km rate(r) = x mph time(t) = d/r = 156/x hrs Next .....

17. A certain sum of money is to be divided among a certain number of men. If there were three man less, each man would Rs 150 more. If there were six man more, each man would have Rs 120 less. Find the sum of money and the number of men.

.....

18. Determine the rate of interest for a sum that becomes ( 216/ 125 ) times of itself in 3 years compounded annually. [ Ans : 20% ]

.....

19. By what percent less is the annual compound interest on Rs 8000 for three years at 10% per annum. Then the SI on Rs 10000 for 2 years at 20% per annum. Find it. [ Ans: 33.8 ]

.....

20. In a survey of some tourist, 80% of the tourist had been to India and 35% of the tourist had been to China. If all the tourist who had been to China also been to India and 260 have not been either of the country, find the number of tourist who had been to India but not China also present the given information in a venn-diagram.

.....

21. Out of the students appeared in an examination 45% students passed in Mathematics or Science and 35% in Geography only. Calculate the percent of the students who failed in any subject.

Here,  % of students passed in maths or science = 45% % of students passed in geography only = 35% Total % of students passed in all the subjects = n(MUSUG)  = 45 + 35 = 80% So,  % of .....

22. We want to solve the problem of border encroachment and improve the relationship with our neighbouring countries. Suggest the measures in this issue.

The measures in solving the problem of border encroachment are as follows: - International pressure should be created. - The dialogue between the head of the state or government should be made. - A civil interest group of both the countries .....

23. What is human organ smuggling?

Human organ trafficking has many negative consequences. They are: - It violates the rights of humans. - The poor people may sell their organs in the hope of earning money which damages their life. - It creates a threat to the health of the .....

24. How can we prepare skilled manpower?

To prepare skilled manpower we need to focus on the followings: Vocational training provisions should be emphasized with effective policy, Academicians, experienced or trained experts should be hired, produced or managed to train other .....

25. Why is hydroelectricity important in Nepal? Write in a sentence.

Nepal is the second richest country in water resources. It has the potentiality of 83000MW hydroelectricity. But, only 800MW has been generated yet. It does not fulfill the need of the country. So, to fulfill the need of the energy, .....

26. Write a work done by Plan Nepal. Write in very short

It also emphasizes gender equality to erase a barrier that has been existing between boys and girls. It also clarifies why it is important for them to provide quality education to the children. These are some of the contributions made by plan .....

27. Convert the following length to the unit shown within brackets.
(1) 3.475 km ( into m)

We know, 1 km = 1000 m Then, 3.475 km = 3.475 * 1000 m = 3475 .....

28. How are developing countries different from least developed ones?

The least developed nations have lack of good governance. They have a lack of well-developed infrastructures like roads, bridges etc. There is the problem of illiteracy. Discrimination and traditional beliefs are deeply rooted. The .....

29. १५. तलको कथांश पढी अन्त्यमा सोधिएका प्रश्नको उत्तर दिनुहोस् :
लक्ष्मणलाई अझै निद्रा परेन । उनका मनमा आफ्ना बाल्यकालकादेखिका एक एक घटनाहरू ताजा भएर आए । उनले आफ्ना दाजुभाइ राम, भरत र शत्रुघनसँग खेल्दै बिताएको बाल्यकाल सम्झे । दाजुभाइ मिलेर लेखपढ गरेको, वाण हान्न सिकेको, घोडा चढ्न सिकेको अनि जङ्गल जङ्गल चहारेको सम्झे । दाइ रामचन्द्रले जनकको दरबारमा रहेको शिवधनु सजिलै उचालेर सीतासँग बिहे गरेको सम्झिँदा उनलाई आनन्द आयो । उनले आमा सुमित्रा र पत्नी उर्मिलालाई सम्झे । राम सीतासँगै वनवास आएको सीताको अपहरण भएदेखि हालसम्मका घटनाहरू त झन् उनको सम्झनामा नआउने कुरै भएन । यसरी लक्ष्मण जुरुक्क उठेर नित्यकर्मतिर लागे । उनीसँगसँगै विभीषण पनि उठे ।

प्रश्नहरू
अ) लक्ष्मणलाई कुन कुराको सम्झना भयो ?
आ) लक्ष्मण केमा हराइरहेका थिए ?

१५. 

क) लक्ष्मणको मनमा बाल्यकालमा आफ्ना दाजुहरुसंग खेलेको, पढेको विभिन्न कलाहरु .....

30. १२.तलको अनुच्छेद राम्ररी पढी चार ओटा बुँदा टिप्नुहोस् र एक तृतीयांशमा सारांश लेख्नुहोस् :
मानिस, वस्तु, विचार, प्रविधि, संस्कृति कुनै निश्चित ठाउँ र देशको सीमा नाघेर विश्वभर फैलने अवस्था नै विश्वव्यापारीकरण हो । विश्वव्यापीकरणमा संसारका कुनै पनि मानिसले सिर्जना, विचार र नयाँ प्रविधिले सजिलै संसारभरि फैलिने मौका पाउँछन्     । यसमा मानिस कुनै एउटा देशको नागरिक मात्र होइन, पृथ्वीकै एउटा सदस्य बन्छ र त्यसबाट लाभ लिन सक्छ । विश्वव्यापीकरणकै कारण अहिले संसारभरिका मानिसले सूचनाम र प्रविधिको लाभ लिन पाएका छन् । सूचना र प्रविधिको विश्वव्यापीकरणले गर्दा संसारभरिका घटना, ठाउँ, जाति, संस्कृतिहरूबारे थाहा पाउन सकिएको छ । साथै इमेल, इहेल्थ, इलाइब्रेरी, इलर्निङ, इक्लास, इमार्केटिङजस्ता सुविधाहरू पाइएको छ ।

विश्वव्यापीकरण र यसको .....

31. How do we see objects?

We are able to see because light from an object can move through space and reach our eyes. Once light reaches our eyes, signals are sent to our brain, and our brain deciphers the information in order to detect the appearance, location and .....

32. What role can government play to control domestic violence?

Domestic violence may be defined as physical or mental violence against any members of the family. We know that a society is made up of the communities living together which itself is made up of the individuals living under the same .....

33. क) मांसाहारी भोजनभन्दा शाकाहारी भोजन नै बेस शीर्षकको पक्षमा वादविवाद लेख । 

मांसाहारी जीवनभन्दा शाकाहारी जीवन बेस वादविवाद
34. Mention a role played by the government to control human trafficking.

Some of the roles for the government in controlling human trafficking are: formulation and strong implementation of laws raising awareness in the general public about the negative effects arresting the accused and trying them in the court of .....

35. How does self-employment help to enrich the economic prosperity of a nation? Write in only one sentence.

Self-employment may be defined as the employment in which an individual works for himself/herself instead of for some money from somebody else. It helps in the economic prosperity of the nation since it provides earning opportunities to all even if .....

36. How has Non-Alliance Movement accepted universal brotherhood?

The Non-Aligned Movement (NAM) had its origins in the Bandung Conference of April 1945 in Indonesia. It was originated by three world leaders: Nehru of India, Tito of Yugoslavia and Nasser of Egypt. NAM started with 25 members in 1961. It has now .....

37. What does the international labour organization do?

International Labour Organization (ILO) was formed in 1919 A.D. It was related to the League of Nations. After World War II it was re-established on 14 December 1946 A.D. Some of the major functions of ILO  are: -Abolishment of child .....

38. What is the function of organization 'global march'?

Global March Against Child Labour is an international movement dedicated to giving every child a chance to live and grow without the burden of exploitative work. Global March is a movement to mobilise worldwide efforts to protect and promote the .....

39. Write a social effect brought in nation after peoples movement 2062.

The success of people movement 2062 brought major change in Nepal. Some of the social changes it brought are: Provided equal opportunity to all Ended discrimination on the basis of caste, language, religion and tribe Introduced the concept .....

40. If f (x +1) =3x+5 then find value of f (x) and f (1).

Here, f(x+1) = 3x + 5 Put, x  = x - 1  we get      f(x - 1 +1) = 3(x - 1) + 5 or, f(x) = 3x + 2. Put x = 1, we get f(1) = 3 + 2 = 5 Thus, f(x) = 3x + 2 and f(1) = .....

41. Prove that: (1 + sin2A)/cos2A = (1 + tanA)/(1 - tanA).

Here, LHS =(1 + sin2A)/ cos2A  =  ( sin2A + cos2A + 2sinA cosA) / (cos2A - sin2A)  [ Since, using formula of cos2A, sin2A & sin .....

42. Prove that: tan215 = 2tan160 + tan55.

We know, 160o = 215o - 55o Take tan of both sides tan160o = tan(215o - 55o) or, tan 160 = (tan 215 - tan 55)/(1+ tan 215. tan 55) but ,as 215 + 55 = 270 so tan 215 = tan(270- 55) = cot 55  tan 160 = (tan 215 - tan .....

43. Prove that: sec(A+B) = (secA + secB)/(1 - tanA.tanB)

Here,  We can write  sec(A+B) = (secA + secB)/(1 - tanA.tanB) as sec(A+B)  (secA + secB) = (1 - tanA.tanB) Then, LHS = secA.secB / sec(A + B)          = cos(A + B) / [ cosA.cosB]        .....

44. Prove that: (cot2A.cot2B - 1)/(cot2B - cot2A) = cot(A+B)/tan(A - B).

Here, RHS = cot(A + B)/tan(A - B) = cot(A+B).cot(A - B) Using formula we get, = { (cotA cotB - 1)/(cotB + cotA)} x { (cotA cotB + 1)/(cotB - cotA)} .....

45. Prove that: tan7A - tan5A - tan2A =  tan7A tan5A tan2A.

We know,           5A + 2A = 7A Now operating both sides by Tan,               [ because we need tan in question.]          Tan(5A+2A) = .....

46. Prove that: cot110 + cot85 + cot75 = cot110.cot85.cot75.

We know,        110o + 85o + 75o = 270o or, 110o + 85o = 270o - 75o Operating by cot on both sides, we get cot(110o + 85o) = cot(270o -75o) or, (cot110o. cot85o - 1)/(cot110o + .....

47. Prove that: cot8A.cot4A -cot12A cot4A - cot12A.cot8A = 1.

We know,           4A + 8A = 12A Now operating both sides by Cot,               [ because we need Cot in question.]          cot(4A+8A) = .....

48. Rewrite the following sentence as given in the bracket.

1)She often says, "I will teach grammar from tomorrow. " (indirect speech)
2) People claim that the price of petrol has gone up. (passive)

Yes, it .....

49. Prove that the circle x2 + y2 - 4x - 4y + 4 = 0 touches the both axes.

Here,  Given equation of circle is  x2 + y .....

50. Find the equation of a circle whose center is the point of intersection of the lines 2x - y - 9 = 0 and x + y + 18 = 0 and passes through the intersecting point of the lines x + 2y = 3 and x + y = 4.

.....