Part 1

The mean radius of the earth is R, its angular speed about its own axis ω and the acceleration due to gravity at the earth surface is g. The cube of radius of orbit of ‘geostationary satellite’ will be its angular speed about its own axis ω and the acceleration due to gravity at the [...]

Two small satellites move in circular orbits around the earth, the distances r and r+Δr from the centre of the earth. Their time period of rotation are T and T+ΔT. (Δr the distances r and r+Δr from the centre of the earth. Their time period of rotation are T and T+ΔT. (Δr Two small satellites [...]

A satellite is launched into a circular orbit of radius R around the earth. A second satellite is launched into an orbit of radius 1.01R. The period of second satellite is larger than the first one by approximately An asteroid of mass m is approaching earth initially at a distance 10 RE with speed vi. [...]

The distances of two satellites from the surface of the earth are R and 7R. Their time periods of rotation are in the ratio The distances of two satellites from the surface of the earth are R and 7R. Their time periods of rotation are in the ratio September 15, 2020 Category: Cengage NEET by [...]

Suppose the gravitational force varies inversely as the nth power of distance, then the time period of a planet in circular orbit of radius R around the sun will be proportional to. Suppose the gravitational force varies inversely as the nth power of distance then the time period of a planet in circular orbit of [...]

An asteroid of mass m is approaching earth, initially at a distance 10 RE with speed vi. It hits earth with a speed vf (RE and ME are radius and mass of earth),. Then An asteroid of mass m is approaching earth initially at a distance 10 RE with speed vi. It hits earth with [...]

A man is carrying a block of a certain substance (of density 1000 kg m^−3) weighing 1kg in his left hand and a bucket filled with water and weighing 10 kg in his right hand. He drops the block into the bucket. How much load does he carry in his right hand now. a number [...]

When a tuning fork A of frequency 100 Hz is sounded with a tuning fork B, the number of beats per second is 2. On putting some wax on the prongs of B, the number of beats per second becomes 1. The frequency of the fork B is the number of beats per second becomes [...]

A tuning fork whose frequency as given by manufacturer is 512 Hz is being tested with an accurate oscillator it is found that the fork produces a 2 beat per sound when oscillator reads 514 Hz and 6 beat per sound when it reads 510 Hz. The actual frequency of fork is A thin plane [...]

Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval, between two consecutive maxima heard by an observer is between two consecutive maxima heard by an observer is Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval September 15, 2020 Category: Cengage [...]