Students and Teachers Forum
Sun is emitting very harmful radiation such as UV rays every second. And living organisms are vulnerable to these radiations. Ozone, present in atmosphere blocks these radiation and protect living organisms from harmful impacts of these .....
स्याबास ! तिमीले राम्रो गरेका छौ । आत्था ! आगोले पोल्यो । आम्मै ! कति ठूलो सर्प रहेछ । विचरा ! .....
चरो आकाशमा उड्दैन .....
To make people understand regarding good and bad, we should focus on the following things: - We should convince them to accept the advice given by the educated ones. - We should ask them not violate the social norms and values while making .....
फूलबारी .....
The Prime Minister and Ministers shall be collectively responsible to the Federal Parliament. The Ministers shall be individually responsible for the work of their respective Ministries to the Prime Minister and the Federal .....
Ozonosphere is part of stratosphere. In stratospheric, we can find ozone. Ozone has made a special layer in this region, which is called ozonosphere. This ozonosphere prevents harmful UV rays from sun to enter to earth .....
Ionosphere is fourth layer of atmosphere from the ground. we can find lighter gases such as hydrogen and helium in this layer. It extends from almost above 50 km to 1000 km of our atmosphere. Due to the interaction with solar .....
The causes of drug addiction are as follows: - The domestic violence can lead a youth to drug addiction. - The involvement in the bad company may lead a person to drug addiction. - Due to illiteracy, people are involved in drug .....
here, ∡ADB + ∡ABD + ∡BAD = 180० or, 29० + 90० + ∡BAD = 180० so , ∡BAD = 61० now , use ∡BAD + ∡BCD = 180० because ABCD is cyclic .....
Scout was established in 2009 BS in Nepal. The government of Nepal passed the scout law in 2050 B.S. Now it is working throughout the country. The meaning and its logo reflect duty to do good deeds for the country and its people. The uniform and .....
Windows of a room are covered with curtains during winter seasons because curtains provide an extra barrier to radiant heat loss, add insulation and reduce .....
They are the valuable asset of the country. They help in the promotion of tourism industries as they are the major attractions for the tourists. They add glory of the country. They are the sources for religious, cultural or natural study, .....
Since A(-3,3) , B(-1,2) and C(a,-1) lie on the same straight line. Slope of AB = Slope of BC Then, Slope of AB = ( y2 - y1 ) ∕ ( x2 - x1 ) = (-1 + 3 ) ∕ ( 2 - 3 ) = 2 ∕ -1 = -2 Then, Slope of BC = ( .....
Here, Rs. 315 = $3 or, Rs. 45 = $ 3 / Rs. 315 ⨉ Rs. 45 = $ 3/ 7 Again, $ 3 = £2 + Rs. 45 or, $ 3 = £ 2 + $ 3/7 or, $ 3 - $ 3/7 = £2 or, $ 18 / 7 = £ 2 or, $ 18 = £ .....
Soniya is just 14 years old. Her family members are now discussing about her marriage but she disagrees and prefers to continue her study. Now, she is worried that the matter of her marriage may destroy her dream to be a capable citizen and serve the nation. |
The girl named Soniya is suffering from the discussion about her marriage by her parents. She is just 14 but her parents are forcing her to get married and settle a family life. But she disagrees to her parent's purpose. She is much .....
A baby dinosaur is called a hatchling .....
The sunflower is not the rarest flower, but it’s still a beautiful symbol of power for many people. In many ways, it’s more powerful in what it symbolizes because it is easy to grow in your backyard or a patio container. Find out what .....
Equinophobia or hippophobia is a psychological fear of .....
The ionosphere is ionized by solar radiation. It plays an important role in atmospheric electricity. It influences radio propagation to distant places on the .....
Weather occurs in the lowest layer of the atmosphere, called the troposphere. So, storms and clouds are limited in troposphere. The features of troposphere are: a. It extends from 8-10 km at the poles and up to 16 km at the equatorial. b. .....
Plants in very cold region are sprayed salt with water because salt is a great ice melter because it causes “freezing point depression.” This means that salt helps in lowering the freezing point .....
you may know that fur is insulator of heat. So, fur in animal prevents heat from flowing flowing out of the animal body. In this way, heat produced inside body can not escape to surroundings . And this preserved heat keeps the body .....
Distilled water cannot conduct electricity because it does not contain ions while rain water conducts electricity as it contains ions due to presence of dissolved salts in .....
Inspiration Obtained from: - the contribution made by the international personalities - from the friend and family - from the organization itself Note: On the basis of the information provided above prepare an editorial in your own .....
here, first expression a + b = - 9 or, a = - 9 - b and , ab = 18 or, ( - 9 - b ) . b = 18 or, - 9b - b2 = 18 or, b2 + 9b + 18 = 0 on factorizing we get ( b + 2 ) ( b + 9 ) = 0 so b = -2 and b = .....
Given, a + b = 4 a = 4 - b ----------------- [ I ] ab = -32 Placing the value of 'a' from equation [ I ], we get, (4 - b)b = -32 4b - b2 = - 32 b2 - 4b - 32 = 0 b2 - ( 8 - 4 )b - 32 = 0 b2 - 8b + 4b - 32 = 0 b(b - 8) + .....
now, use the value of b in first condition and find value of .....
Here, LHS = ( tan2a + cot2a) / ( tan2a - cot2a ) = ( sin2A/cos2A + cos2A/sin2A) / ( sin2A/cos2A - cos2A/sin2A) = ( sin22A + cos22A) / ( sin22A - .....
Let, f(x) = 2x3 - 5x2 -6x + 9 = 0 Here, for x = 3, f(3) = 0 So,comparing (x - 3) with (x - a), a = 3 By using synthetic division method, divide f(x) by x - 3 & factorise the quotient to find the values of .....
There most be some other values in this question. We get factor of one as plus or minus one, but both values does not get zero from above .....
Metal | Specific heat capacity |
X Y Z |
900 J/KgoC 460 J/KgoC 380 J/KgoC |
(ii) Different metal balls with equal mass are heated to 100oC and kept on the wax-slab, which metal ball will penetrate most deep and why?
i) It means that 460 Joule heat energy is required to increase temperature by one degree centigrade temperature of one kg mass of the body. ii) The metal ball with the highest density will .....
We cannot see the sun where the shadow of cloud is because the clouds block the view of the sun so we cannot .....
In Nepal, religion is not just a set of beliefs and accompanying rituals handed down from generation to generation. It is a complex intermingling of traditions, festivals, faiths and doctrines that have permeated every stratum of Nepalese .....
The atmosphere today contains more greenhouse gas molecules. So more of the infrared energy emitted by the surface ends up being absorbed by the atmosphere. Since some of the extra energy from a warmer atmosphere radiates back down to the surface, .....
LHS (2cosθ + 1)(2cosθ - 1)(2cos2θ - 1) = {(2cosθ)2 - 12} (2cos2θ - 1) [∵ Using formula (a + b)(a - b) = a2 - b2] = (4cos2θ - .....
Here, LHS= tan3 ∝/(1+tan2 ∝) + cot3∝/(1+cot2∝) We have, 1+tan2 ∝ = sec2 ∝ and 1+cot2∝ = cosec2 ∝ = .....
A hydrocarbon is an organic compound made of nothing more than carbons and hydrogens. It is possible for double or triple bonds to form between carbon atoms and even for structures, such as rings, to .....
- People around the globe won't be suffering from poverty. - No people have to die due to hunger. - People will have a sound health and enjoy a quality life. - People will obtain a quality education. - The man and women will have equal .....
Here, Let, B and G denotes the work that the boy and the girl does to finish the project in 1 day individually. Then, by the question, 3B + 4G do the project in 7 days. That is, 3B + 4G do 1/7 work in 1 day. That is, 3B + 4G = 1/7 .....
e.g. According to question, circle passes through points (3, 1), (1, -1) and (3, -3). For first point (3, 1), the equation of circle will be (3 - h)2 + (1 - k)2 = r2 -------- (i) Similarly, for second point .....
Apply this format with the following information and write the report. Introduction: Introduce the heritage, the place, and the .....
Here, (a/b)1/(x-2) = (a/b)1/y 1/(x - 2) = 1/y or, y = x - 2 or, x = y + .....
Located in the lower torso, the pelvis is a sturdy ring of bones that protects the delicate organs of the abdominopelvic cavity while anchoring the powerful muscles of the hip, thigh, and abdomen. Several bones unite to form .....
When a saturated solution heated it becomes unsaturated because it causes increase in kinetic energy which leads to increase in distance between the molecules of liquid. So that the solute particles .....
Gallium is a chemical element with symbol Ga and atomic number 31. It is in group 13 of the periodic .....