The engineers had to carefully blow up the air mattress before setting it up for the camping trip.
Two billiard balls each of mass 0.02 kg moving in opposite directions with speed 5 m s−1 collide and rebound with the same speed. What is t...
For a non-relativistic particle, the ratio of phase velocity to group velocity of de Broglie waves is:
A body is thrown upward with an initial velocity of 20m/s. How much time will it take to reach its maximum height. (g=10m/s)
A ray of light passing through an equilateral triangular glass prism from air undergoes minimum deviation when angle of incidence is 75% of the angle o...
A spherical ball made of steel when dropped in mercury container will –
Which of the following particles in motion, having the same kinetic energy, has the shortest wavelength?
In AC circuits, AC meters measure –
If the Earth stopped rotating, what would happen to the apparent value of gravity (g) at different locations?
A porter lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage (take g = 10...
A stone thrown upward with a speed ’u’ from the top of the tower reaches the ground with a speed ‘3u’. The height of the tower is-
