Questions by varun

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Why is the force of repulsion responsible for the formation of a solid and not the forces of

asked Mar 19, 2022 in 11th Physics

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A bar of cross section A is subjected to equal and opposite tensile force F at its ends. If there is a plane through the bar making an angle Q, with the plane at right angles to the bar in the figure a) Find the tensile stress at this plane in terms of F, A and Qb) What is the shearing stress at the plane in terms of F, and Q.c) For what value of Q is tensile stress a

asked Mar 19, 2022 in 11th Physics

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Which is more elastic rubber or steel?

asked Mar 19, 2022 in 11th Physics

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The Young’s modulus of steel is `2.0xx10^(+11) w`/`m^2`. If the interatomic spacing for the metal is `2.8xx10^(-10)m`, find the increase in the interatomic spacing for a force of `10^9 N`|`m^2` and the force

asked Mar 19, 2022 in 11th Physics

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State the law of

asked Mar 19, 2022 in 11th Physics

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The blood pressure of humans is greater at the feet than at the

asked Mar 19, 2022 in 11th Physics

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asked Mar 19, 2022 in 11th Physics

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State the angle of contact and on what values do the angle of contact

asked Mar 19, 2022 in 11th Physics

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Hydrostatic pressure is a scalar quantity even though pressure is force divided by area, and force is a vector.

asked Mar 19, 2022 in 11th Physics

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Find the work done in blowing a soap bubble of surface tension 0.06 N/m from 2cm radius to 5cm

asked Mar 19, 2022 in 11th Physics

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Calculate the radius of new bubble formed when two bubbles of radius `r_1 and r_2`

asked Mar 19, 2022 in 11th Physics

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A liquid drop of diameter 4 mm breaks into 1000 droplets of equal size. Calculate the resultant change in the surface energy. Surface tension of the liquid is 0.07

asked Mar 19, 2022 in 11th Physics

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State the principle on which Hydraulic lift work and explain its

asked Mar 19, 2022 in 11th Physics

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Does Archimedes principle hold in a vessel in a free

asked Mar 19, 2022 in 11th Physics

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Why does not the pressure of atmosphere break

asked Mar 19, 2022 in 11th Physics

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If a big drop of radius R is formed by 1000 small droplets of water, then find the radius of small

asked Mar 19, 2022 in 11th Physics

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A boulder is thrown into a deep lake. As it sinks deeper and deeper into water, does the buoyant force

asked Mar 19, 2022 in 11th Physics

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At what depth in an ocean will a tube of air have one – fourth volume it will have on reaching the surface? Given Atmospheric Pressure = 76 cm of Hg and density of Hg =

asked Mar 19, 2022 in 11th Physics

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Why is it painful to walk barefooted on a road covered with pebbles having sharp

asked Mar 19, 2022 in 11th Physics

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A liquid stands at the same level in the U – lube when at rest. If A is the area of cross section of tube and g is the acceleration due to gravity, what will be the difference in height of the liquid in the two limbs when the system is given acceleration

asked Mar 19, 2022 in 11th Physics

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