Students and Teachers Forum

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According to nebular hypothesis :there was a big bang ...Nebula was formed. it cools, gases(hydrogen and helium) Condenses, the main dust particles condensed formed the sun and the dust particles present in clamps due to Gravitation and .....

Speed of a sound wave is calculated by using the formula: Speed (v) = frequency (f) ⨉ wavelength (λ). The sound with more frequency may have less wavelength and vice versa. So, the product of frequency and wavelength remains .....

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Sound is produced when something vibrates. The vibrating body causes the medium (water, air, etc.) around it to vibrate.  These vibrations carry a certain amount of energy and travels in the form of wave. The wave energy .....

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Here, SP is greater than CP so, We have to take out profit. Therefore, profit = SP - CP = Rs.800 - Rs. 300 = Rs. .....

Here,  Sn = n + 1 Now,  a4 = S4 - S3                    [ REMEMBER : an = Sn - Sn-1      = (4 + 1) - (3 +1)       = .....

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Purdah is also spelled Pardah or Parda in Hindi. It is a practice that was inaugurated by Muslims and later adopted by various Hindus, especially in India. It involves the seclusion of women from public observation by means of concealing .....

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Nepal was scattered and fragmented kingdoms in the past before unification. Different dynasties like Mallas, Lichcahhvis, Shah, Khas and Sen ruled over such kingdoms. There were 22 kingdoms like Jajarkot, Jumla, Rukum, Salyan, Achham, etc in the .....

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Here I send a same question but different name, so try to do your question by changing name.

Proof of theorem:

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Here, LHS is seems to be long and complicated, So lets start from it and reduce to RHS. LHS=cosA/[1+sinA]+[1+sinA]/cosA Now take LCM of .....

Development is a dynamic process of positive change or progress. The requirements for carrying out development activities are what we call prerequisites to development. The followings are the prerequisites for development: - Literacy is one of .....

Plan is a set of actions that have been thought of as a way to do or achieve something. It is the set of actions with goals, objectives, strategies to achieve such goals etc. Its focus is to develop the whole nation with the proper utilization of .....

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

Trade across the country is what we call international trade. International trade is quite important to Nepal. The major importance of international trade is presented in the points below: - International trade helps to utilize the available .....

The International Conference on Primary Health Care was held on September 1978 in Alma-Ata. The Declaration of Alma-Ata, co-sponsored by the World Health Organization (WHO), is a brief document. The document expresses "the need for urgent .....

 B-complex vitamins are water-soluble vitamins. i.e. they need to dissolve in water before our body can absorb them. Because of this, our body cannot store these vitamins. Vitamin-B complex is actually a group of eight .....

Vitamin D is called “the sunlight vitamin” because our skin makes it when it’s exposed to sunlight. Vitamin D precursor (from which vitamin D is synthesized) is formed in the skin due to sunlight(UV rays). Hence vitamin D is .....

Fullstop is used at the end of a sentence inorder to show the completedness of a .....

National Immunization Programme (NIP) is the priority program of Child Health Division. It is believed to be one of the successful public health interventions of Nepal. Currently, eleven antigens are provided through the routine immunization under .....

Safe mother is a medical practice of providing all the cares to the pregnant women during the pregnancy and during childbirth. Safe motherhood programme in Nepal has launched 2002 .....

Abortion is the process of intentional termination of human pregnancy by qualified professionals. It may be termed as unsafe when performed by unqualified persons. Some of the reasons for outlawing unsafe abortion are: It is carried out by .....

Pregnancy is the term used to describe the period in which a fetus develops inside a woman's womb or uterus. Pregnancy usually lasts about 40 weeks. The followings are the symptoms of pregnancy: - The breasts may feel fuller and heavier. - .....

We have, f (x) = 4x + k Also, f(2) = f(1) or, 4.2 + k = 4 .1 + k 8 = 4  Which is not true. Hence, the given question is .....

Acidic gases such as that released from the wood of oak cupboards will eventually .....

Let, x be the external angle. Then, internal angle is 3x. Now,  x + 3x = 180 [ Angles in the straight line] or, 4x = 180 Therefore, x = 45 Now, internal angle = 3x = 3×45 = 135 or, (n - 2) × 180/ n = 135 Now, solving .....