Find the torque about the origin when a force
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Solution: (2)
The phase difference between displacement and acceleratin of a particle in a simple harmonic motion is
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Solution: (4)
Light with an average flux of 20 w/cm2 falls on a non-reflecting surface at normal incidence having surface area 20cm2
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Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligible mass. The centre of mass of the system from the 5 kg particle is nearly at a distance of :
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Solution:(2)
The solids which have the negative temperature coefficient of resistance are:
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Solution:(3)
The average thermal energy for a mono-atomic gas is : (kB is Boltzmann constant and T, absolute temperature)
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Solution:(1)
For the logic circuit shown, the truth table is:
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Solution:(4)
A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale. The pitch of the screw gauge is
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Solution:(2)
A capillary tube of radius r is immersed in water and water rises in it to a height h. The mass of the water in the capillary is 5 g. Another capillary tube of radius 2r is immersed in water. The mass of water that will rise in this tube is
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Solution:(2)
The energy equivalent of 0.5 g of a substance is
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Solution: (1)