A particle falls from rest under gravity. Its potential energy with respect to the ground (PE) and its kinetic energy (KE) are plotted against time (t). Choose the correct graph.

Potential energy (PE_(n)) and kinetic energy (KE_(n)) of electron in nth orbit are related as

Potential energy (PE_(n)) and kinetic energy (KE_(n)) of electron in nth orbit are related as

A particle is realesed from a height H from ground. At certain height its kinetic energy is three times its gravitational potential energy with respect to ground. Then choose the correct option(s). (Given 'g' is acceleration due to gravity is constant).

A particle fall freely from height s . At certain height its kinetic energy is three time to its potential energy ,them at any one instant its height and speed respectively …………..

A particle is performing linear S.H.M.at a point A, on the path , its potential energy is three times kinetic energy . At another point B on the same path, its kinetic energy is 3 times the potential energy. The ratio of the kinetic energy at A to its kinetic energy at B is

A particle is performing linear S.H.M. at a point A, on the path, its potential energy is three times kinetic energy. At another point B on the same path, its kinetic energy is 3 times the potential energy. The ratio of the potential energy at A to its potential energy at B is

An alpha particle is accelerated from rest through a potential difference of 100 volt. Its final kinetic energy is

An alpha particle is accelerated from rest through a potential difference of 100 volt. Its final kinetic energy is