Students and Teachers Forum

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Given,  length(l) = 12 cm breadth (b) = 10 cm height(h) = 7 cm We know, surface area of a cuboid = 2lb + 2lh + 2bh                                   .....

Here, L.H.S = 2 cos 70°. cos 20°                     = cos (70° + 20°) + cos (70° -  20°) [since 2cosA . cosB = cos(A + B) + cos(A - B)]     .....

Similarly, proper security is another important thing for the development of industry in Nepal. If there is lack of proper security to the investment of the investors, workers, etc. the industries could not survive well. For example, Nepal has .....

If SP with VAT is given. SP without VAT = (SP with VAT) - VAT% of .....

The first martyr of Nepal is Lakhan Thapa. He had protested the tyranny against the rule of Jung Bahadur Rana.  He was the first revolutionary leader too.  Nepal government has declared "The First Martyr of Nepal" to Lakhan .....

आज्ञार्थ :  वक्ताले आफूनजिक रहेका  व्यक्तिलाई कुनै पनि काम गर्नका लागि आदेश दिइएको वा .....

Now, try to answer the remaining questions regarding the compound as sulphuric .....

Once I happened to visit a village far from the town. The village was full of natural beauties. There were not many houses which were made from mud bricks. The village was very neat .....

You may know that Hydrometer is a device used to measure the density of a liquid or relative density. Hydrometer is based on law of flotatation principle. In case of hydrometer,the mass of the displaced fluid is equal to the mass of the .....

You may know that M.A is the ratio of load to the effort. It is obvious that we feel easy when we use simple machine to do any work. Those machine makes our work  many times easier than the work done without using them. M.A calculate how .....

If you feel this is difficult, there is another method .....

You may have learnt Mendel's experiment on pea plant. According to Mendel, when a tall pea plant and a dwarf pea plant were intercrossed,  tall pea plants were observed in first generation. However, when the pea plants in first .....

You can see difference in the .....

Dwarf is a type of phenotype in which an organism appear smaller in size in comparison to other. Look at the figure below. As mentioned in the figure,  first plant is tall and second plant is dwarf (smaller in comparison to first .....

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CFC एक प्रकारको ग्यासको नाम हो । CFC - chlorofluorocarbon को संक्षिप्त रुप हो .....

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We have to prove, 16 cos3A . sin2 A = 2 cos A - cos 3A - cos 5A So, lets take RHS and reduce it to LHS. RHS = 2 cos A - cos 3A - cos 5A = 2 cos A - [cos 3A + cos 5A] Now using   CosC + CosD = 2Cos[(C+D)/2]Cos[(C-D)/2] we get, = .....

Here given data is not in continuou series, so lets meke it continuous.   Marks ( X ) 5-15 15-25 25-35 35-45 45-55 Frequency(f) 3 7 - 3 = 4  13 - 7 = 6  1  1 Now make table .....

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पृथ्वीनारायण शाहले नेपाल एकीकरणको महायात्रा सुरू गरी कैयौं स्थानलाई नेपाल राष्ट्रमा गाभेर ४ .....

You may have learnt that the filament used in electric bulb is made of tungsten wire. Tungsten is a metal but it has high electric resistance. So, when electricity is passed through the bulb,  tungsten burns due to high resistance. This .....

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The social costumes differ from one place to another because of the following things: The social norms and values differ because of the geographical distance. The social costumes of Himalayan region is different than of Hilly and Terai. This is .....

Dear Sabhyata, first let us know what the first five multiples of 3. They are 3, 6, 9, 12, 15. Now, lets write these elements as a set. It is written as: First five multiples of 3 = {3, 6, 9, 12, .....

Solution: Here,  you can add 0 after 6 in 1.60  Then,   2 . 3 6 -1.  2 8 +1. 6 0  2.  6 8   Remeber we take carry 1 from 3 and it becomes 16. 16-8 = .....

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Definitely, low child death rate helps to control the population growth. If the child death rate is high, people give the birth of too many children because of fear of losing their children. This results in the habit of giving birth to many .....

खोज र अनुसन्धानको कार्य आफैमा सजिलो हुदैन | अत्यन्तै कठोर परिश्रमबाट मात्रै वैज्ञानिकहरुले .....

You may have learnt that when a substance is heated, its volume increases. When a tight metal lid is dipped in hot water, the heat from water increases the volume of the lid. This loosens the grip of the lid. Thus, the process makes it easier to .....

Do you know what fossils are? Fossils are the remains of the dead bodies of plants and animals buried millions years ago.

And igneous rocks are the rocks that formed after cooling and solidification of molten materials. Igneous rocks form when .....

The religions followed in our country are listed below with their founders. Religions                          Founders Hindu            -    .....

Did Ghimire teach you? Reason: The above sentence is in the passive structure; Aux. + Obj. + V3 + by + ...? The active structure of this passive structure is; Aux. + Sub + V + Obj + .....

Last week, we the students of grade 10, have gone for an educational tour to the historical place 'Hanuman Dhoka Durbar Square'. The objectives of the tour were as follows: - to study the geographical location of Hanuman Dhoka Durbar .....

 

Vegetation of equatorial regions:- Canopy layer:- Tall trees in this layer are called canopy tree. They grow so close together that .....

The suggestions will be as follows: - We should focus on the folk songs and folk musical instruments in the programme. - This will help in preserving and protecting our cultures. - The young generation will be familiar with folk songs and musical .....

रवीन्द्रनाथको गीताञ्जली विश्व प्रसिद्ध नोबेल पुरस्कार प्राप्त गर्न सफल भएको अत्यन्त .....

Here, L.H.S = tanθ + 2 tan2θ + 4 cot4θ                      = tanθ + 2 tanθ + (4/tan4θ)                 .....

All the objects are made of up small particles called molecules or atoms. The molecules inside the body are in the state of vibration. The vibrating molecules have their kinetic energy. The sum of molecular energy inside a body measures, the .....

सृजना भनेको के हो ? सर्वप्रथम बुझ्न आवश्यक छ । सृजना भनेको कुनै पनि वस्तु वा कृतिको आविष्कार, .....

The right answer is; does he? Reason: The subject is 'He'.                     The tense of the sentence is 'simple present' (Sub + V1/5 + Obj)         .....

Look at the above figure for concave and convex lens. The first one is concave lens and second one convex lens. You can clearly see that the focal length of concave lens is negative and that of convex lens is positive. As we know, power .....

A glucose meter is a medical device for determining the approximate concentration of glucose in the blood.  

 It can tell you when your sugar is too low or too high.   

Glucose meter can also show .....