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The work done in stretching an elastic wire per unit volume is

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Important Questions on Properties of Solid and Liquid

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JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 5

In a wire, when elongation is 2 cm, energy stored is E. If it is stretched by 10 cm, then the energy stored will be

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JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 6
A metallic rod of length l and cross-sectional area A is made of a material of Young's modulus Y. If the rod is elongated by an amount y, then the work done is proportional to
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Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 7
A raft of wood of mass 120 kg floats in water. The weight that can be put on the raft to make it just sink should be draft=600 kg m-3
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Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 8
A block of silver of mass 4 kg hanging from a string is immersed in a liquid of relative density 0.72. If relative density of silver is 10, then tension in the string will be: [ take g=10 m s-2]
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IMPORTANT
Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 9
Water (density ρ) is flowing through the uniform tube of cross-sectional area A with a constant speed v as shown in the figure. The magnitude of force exerted by the water on the curved corner of the tube is (neglect viscous forces)
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Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 10
Water containing air bubbles flows without turbulence through a horizontal pipe which has a region of narrow cross- section. In this region the bubbles
HARD
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IMPORTANT
Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 11
A bubble of radius R in water of density ρ is expanding uniformly at speed v. Given that water is incompressible, the kinetic energy of water being pushed is,
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IMPORTANT
Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 3>Q 12

A tank is filled with water up to a height H. Water is allowed to come out of a hole Pin one of the walls at a depth D below the surface of the water. Express the horizontal distance x in terms of H and D.

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