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An incompressible liquid is flowing through Aa horizontal pipe as shown in figure. The magnitude of velocity v is

If in case-A, elongation in wire of length L is l. Then for same wire, elongation is case-B will be

A verical thin rod is hinged at point P, due to slight push rod starts to rotate.The velocity of centre of mass of rod just after turning angle 0 is [L is length of rod] (## AAK_TST_09_NEET_19_PHY_E09_041_Q001 ##)

Two blocks A and B having masses 5 kg and 10 kg respectively connected through a massless string which is passing over a pulley (disc) of mass 2 kg and radius 25 cm as shown in figure If system is. released from rest. then angular acceleration of the pulley is (String does not slip over the pulley horizontal surface is smooth and g = 10ms ^-2 (AAK_TST_02_NEET_PHY_E02_011_Q01)

A particle of mass 2 kg released from point A(2, 0, 0) m as shown in the figure. The rate of change of angular momentum of the particle about the origin at time t = 2 s will be (Origin is taken somewhere above the ground in space at sufficient height and g = -10 hat j m/s^2 ) (AAK_TST_02_NEET_PHY_E02_016_Q01)

Two metallic rods of same area of cross section, having lengths in ratio 2:3 and ratio of thermal conductivities 2:3 are connected in series across a temperature difference as shown in figure. The temperature of the junction (theta_0) is

The height of mercury in the barometer tube is 70cm due to entrapped air in it as shown in figure. Now from this position tube is pulled up slightly, then length of the mercury column in the tube will

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