Questions by varun

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Assuming earth to be a uniform sphere finds an expression for density of earth in terms of g and

asked Mar 19, 2022 in 11th Physics

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If radius of earth is 6400km, what will be the weight of 1 quintal body if taken to the height of 1600 km above the sea

asked Mar 19, 2022 in 11th Physics

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A satellite is revolving is a circular path close to a planet of density P. find an expression for its period of

asked Mar 19, 2022 in 11th Physics

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How far away from the surface of earth does the value of g is reduced to 4% of its value on the surface of the earth Given radius of earth =

asked Mar 19, 2022 in 11th Physics

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Obtain on expression showing variation of acceleration due to gravity with

asked Mar 19, 2022 in 11th Physics

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The stretching of a coil spring is determined by its shear modulus.

asked Mar 19, 2022 in 11th Physics

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The spherical ball contracts in volume by 0.1% when subjected to a uniform normal pressure of 100 atmosphere calculate the bulk modulus of material of

asked Mar 19, 2022 in 11th Physics

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In the following stress – strain curve, which has:-1) Greater young’s Modulus 2) More Ductility 3) More Tensile

asked Mar 19, 2022 in 11th Physics

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A cube is subject to a pressure of `5xx10^5 N|m^2`. Each side of cube is shortened by 1% find: - 1) the volumetric strain 2) the bulk modulus of elasticity of

asked Mar 19, 2022 in 11th Physics

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If the potential energy is minimum at `r = r_o = 0.74A^o`, is the force attractive or repulsive at `r = 0.5A^o; 1.9A^o and

asked Mar 19, 2022 in 11th Physics

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A hollow shaft is found to be stronger than a solid shaft made of same equal material?

asked Mar 19, 2022 in 11th Physics

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Calculate the work done when a wire of length l and area of cross – section A is made of material of young’s Modulus Y is stretched by an amount

asked Mar 19, 2022 in 11th Physics

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Water is more elastic than air.

asked Mar 19, 2022 in 11th Physics

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Explain :- 1) Elastic Body 2) Plastic Body 3)

asked Mar 19, 2022 in 11th Physics

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The length of a metal is `l_1`, when the tension in it is T1 and is `l_2` when tension is `l_2`. Find the original length of

asked Mar 19, 2022 in 11th Physics

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State Hooke’s

asked Mar 19, 2022 in 11th Physics

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What are ductile and brittle

asked Mar 19, 2022 in 11th Physics

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An elastic wire is cut to half its original length. How would it affect the maximum load that the wire can

asked Mar 19, 2022 in 11th Physics

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Define modulus of elasticity and write its various

asked Mar 19, 2022 in 11th Physics

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Two different types of rubber are found to have the stress – strain curves as shown in the figure stress 1) In what ways do these curves suffer from the stress- strain curve of a metal wire?2) Which of the two rubbers A and B would you prefer to be installed in the working of a heavy machinery3) Which of these two rubbers would you choose for a car

asked Mar 19, 2022 in 11th Physics

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