A nucleus of uranium decays at rest into nuclei of thrrium and helium. Then
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(a) The helium nucleus has more momentum than the thorium nuclues (b) The helium nucleus has less kinetic […]
A circuit contains an ammeter, a battery of 30 V and a resistance 40.8 ohm all connected in series. If the ammeter has a coil of resistance 480 ohm and a shunt of 20 ohm, […]
A beam of light consisting of red, green and blue colours is incident on a right angled prism. The refractive index of the material of the prism for the above red,green and blue wavelengths are […]
A ball is thrown vertically downwards from a height of 20 m with an initially velocity v₀. It collides with the ground, loses 50 percent of its energy in collision and rebunds to the same […]
4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas at constant volume is 5.0 JK⁻¹ mol⁻¹. If the speed of sound in this gas at NTP is […]
If dimensions of critical velocity of a liquid flowing through a tube are expressed ad npr, where n,p and r are the coefficient of viscosity of liquid, density of liquid and radius of the tube […]
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