Kinematics — Physics STD 11 — Question

The radius of gyration of a solid sphere of radius r about a certain axis is r. The distance of that axis from the center of the sphere is –

The concept “force causes motion” was given by –

In a carnot heat engine 8000J of heat is absorbed from a source at 400 K and 6500 J of heat is rejected to the sink. The temperature of the sink is …..

While negotiating a circular level road a cyclist has to bend by an angle θ from vertical to stay in an equilibrium is-

When a wave goes from one medium to another, there is a change in

A particle falls towards earth from infinity. It’s velocity reaching the Earth would be ……

Newton’s second law gives –

A geostationary satellite orbits around the earth in a circular orbit of radius 3600 km the time period of a satellite orbiting a few hundred kilometers above the earth’s surface (RE = 6400 km) will be approximately be …… hours.

Bernoulli’s theorem is applicable to ………

A vehicle with a horn of frequency n is moving with a velocity of 30m/s in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency n + n1. Then (if the sound velocity in air is 300 m/s)