The viscosity is the internal friction in a fluid arises due to the desity of fluid that oppose or resist flowing .....

ii. Because of the surface tention force between the liquid and the drop tries to have smallest surface area for the same amount of material and sphere is that smallest area hence it have spherical in .....

P= Pa + Pb + Pc ...... where, P= total pressure of mixture Pa = partial pressure of gas A Pb = partial pressure of gas B Pc = partial pressure of gas C Total pressure of mixture of two or more than two non-reacting .....

This is due to the contineous collision between the gases molecule causes the random .....

Equivalent wt= atomic wt/valency or, atomic weight = eq. wt x valency 16 g of oxygen reacts with 4 g of metal or, 8 g of oxygen reacts with 4/16 x 8                           .....

22400 ml of CO2 = 1 mole of CO2  22400 ml of H2 = 1 mole of H2 1 mole of substance = 6.023x1023 molecules Hence, equal volumes of all gases at the same temperature and pressure contain the  same number of .....

Trivalent metal oxide, M2O3.  Let suppose molecular weight of metal x Total mole weight = 2x + 48 Then calculate the mole weight of metal using the formula % of O2 = weight of oxygen/ total weight X .....

First calculate the number of moles of each species by using the formula number of moles = weight in gram / molecular weight Mg  +   O2         = MgO 1 mole 1 mole    1 mole Then the reacting species .....

The reactant used up completely in a reaction is called limitimg reagent. 2H2 +   O2 = 2H2O 2 mole 1 mole 2 mole It is applicable for 1.the identification of limiting reagent. 2. the number of moles of .....

In this case, total mass of reactant is equal to the mass of the product. The law is also known as law of indestructibility of matter. The law of conservation of mass. It states that, "the total mass of the substances present in the reaction .....

The relation between the temperature and pressure at close vessile i.e at constant volume was given by the Gay-Lussac's in his law which states that "at constant volume the pressure of an  ideal gas is directly proportional .....

Give a background on the first paragraph-We have various festivals. As a multi-ethnic country, different castes of people like Gurung, Magar Newar have festivals of their own. There are some festivals celebrated by .....

There are both positive and negative impacts of television on students. Give a background little introducing good and bad impacts.

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Give back ground-we find large population, big buildings, many vehicles, streets and big markets in town. Village is peaceful with few people few vehicles, small houses, a lot of greenery.

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First paragraph- Dogs have been friends of men since the ancient time. Men keep dogs for different reasons. Mainly dogs protect our house. Does are also kept for companionship.

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Define what a constitution is with its major functions –the main law of a state. protects civic rights, gives guidelines for development, create peaceful environment by its inclusiveness, promotes national .....

Role of youth in nation building-they constitute  more productive population as they are more enduring , can work longer with enthusiastic.

Can be trained as .....

Consider a light, elastic spring of force constant K. Let its one end be attached to a rigid support such as on ceiling and a mass is attached at the other end as shown in the figure.  

Where a load m is attached, the spring extends .....

When earth suddenly stops rotating about its axis,   as variation of g due to rotation of earth is given by g' = g- ω2Rcos2θ/g......................(i)   Where θ is titude of the given .....

While moving in curved path cyclist bends,  as sidewise frictional forces come into play between the tyres and the road.  The forces of friction act towards the centre of the curved path and hence provide necessary centripetal force .....

In any collision, momentum is conserved. This means

For a perfectly elastic collision, kinetic energy is also conserved

Solving these equations .....

Coefficient of kinetic friction (μk) = 0.3 Reaction force (R) = mg = 15x9.81 = 147.15 Displacement (s) = 1 m Workdone (W) = μk mg s = 0.3 x 147.15 x 1 = 44.145 .....

The law of conservation of linear momentum states that if no external forces act on the system of two colliding objects, then the vector sum of the linear momentum of each body remains constant and is not affected by their mutual .....

We have, R = (u2 sin2θ)/g = (5002 sin2*30)/9.81 = 220.7 m H = (u2 sin2θ)/(2g) = (5002 sin2*30)/(2*9.81) = 110.3 m t = H/(2*u) = 110.3/(2*500) = 0.110 .....

There are various types of newspaper writing. Mainly we can find news report, news paper article, editorial, letter to editor etc. News paper article is essay type of writing on any current issue.

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Job application is usually a cover letter because most company needs your CV/resume and in a cover letter we express our interest, experience and commitment briefly.

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There are types of letters on different basis- formal/informal, personal/official

All official letters are formal, some personal letter can be written in more formal .....

Rains drops hitting the side windiws of a car in motion often leave diognal streaks as; they are exposed to two different forces.

a. Gravity tries to make the water run straight down. if the car is at rest, that is exactly what .....

Yes , it is. First explain what necessary evil is-we need forest products for shelter, furniture, herbs. And we cannot help not using. But it is leading into deforestation.

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Magnitude of→R

To calculate →R    , draw the perpendicular from point C to D as shown in figure.

In ΔOCD

OC2=(OA+AD)2+CD2                .....

Say, the two vectors A, vector B, & resultant  vector they all are equal to vector K ---------------- 1 Then,  we know R2 = A2 + B2 + 2AB .....

Substituting all those dimensions on above relation 1, we finally get [LT-1] = [L-1T] which is dimensionally incorrect. Hence the formula is not .....

Here, [λ] = [L] [p] = [MLT-1] [h] = [λ] [p] = [L] [MLT-1] = [ML2T-1] which is the dimension of planck's .....

Give a background of deforestation in the modern world caused by different factors-population growth, urbanization, farming, housing, forest product supplies like timber, fire wood ,herbs for growing population .....

a. Give a background explaining Usefulness of forest for the country for different reasons-timber, herbs, shelter for wildlife, fresh air. Reason why we should save forest in this paragraph with some negative .....

a. Give a background –population is a human resource necessary for the development. But overpopulation is a problem because the country's resources cannot support and numerous problems are created.

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Population and deforestation are closely related-give examples

Men exploit forest as very important resources –timber for shelter, construction, furniture, herbs etc. Over .....

Youth age fresh with little experience and more hope. Enthusiasm because we want to try on everything adventurous. Life full of joy. They have joy of love, travelling, everything.

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The speaker in the poem is old. He is taking shelter under a broken tree near to the fire and he remembers the time when he was young and used to talk about various things like politics and love. Other young people .....

Love for him is something mysterious. He says that one case cannot be applied to others. Each case should be .....

The three dimensions of love is revealed by three cases of love told by the narrator.

In the first case we see the love between the cook and a beautiful young girl .....

The speaker expresses his feeling about his grandmother, a rural lady. He has very deep attachment and strong feeling for her. She is a source of inspiration like fire. He has created powerful vision using aural, .....

It is a system in place which aims at efficient purchasing of materials, their efficient storing and consumption of materials so as to have the minimum cost of .....

The objectives of material control are as follws,  it control the stocks imn the storesroom.  it shows the stock level of the materials and goods.  it find out the stock level, material level .....

It is discribes systems of inventory wher  information on inventory quantity and availbility is updated on a  continuous basis as a functionof doing business. It is a method of accounting for inventory that records tha sale  or .....

Bin card is a stock status recording documenet for a particular material  held in a stock room . it shows the stock receipts and issues and running  balance in the stock .....

Under this purchasing system, there is no purchasing manager who has the right to purchase materials for all  departments and sections. Thus, all departments purchase independently  to fulfill their .....

When we import/export goods from/to foreign countries, we need to pay tax on such goods to the government and such tax is the custom .....

Varible cost are those costd which are vary depending on a company's   production volume. It risees as production increses and fall as production decreses.  Such as, rent, advertisement cost, insurance cost etc. fixed cost is not .....

It can be influenced by the manager or head  responsible for it.for examles, direct labour,  direct materils, overheads etc. contollable cost are controlled by the management.  Uncontollable costs are those costs which can not .....