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Three forces are acted on a body. Their magnitudes are 3 N, 4 N and 5 N. Then

The Young’s modulus of a perfectly rigid body is

In the propagation of light waves, the angle between the plane of vibration and plane of polarisaiton is

If two particles are brought near one another, the potential energy of the system will

It is given that \(t = p{x^2} + qx\), where \(x\) is displacement and \(t\) is time. The acceleration of particle at origin is