List of top Questions asked in Rajasthan PMT- 2005

Out of the given bodies (of same mass) for which the moment of inertia will be maximum about the axis passing through its centre of gravity and perpendicular to its plane?

A $120\, m$ long train is moving towards west with a speed of $10\, m / s$. A bird flying towards east with a speed of $3\, m / s$ crosses the train. The time taken by the bird to cross the train will be :

The velocity of all radio waves in free space is $3 \times 10^{8} m / s$. The frequency of a radio wave of wavelength $150\, m$ is :