Question Answers

Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 13 - Simple Harmonic Motion > A student says that he had applied a force F = -k√x on a particle moved in simple harmonic motion. He refuses to tell whether k is a constant or not. Assume that he has worked only with positive x and no other force acted on the particle.

A student says that he had applied a force F = -k√x on a particle moved in simple harmonic motion. He refuses to tell whether k is a constant or not. Assume that he has worked only with positive x and no other force acted on the particle.

The sun subtends an angle of half a degree at the pole of a concave mirror which has a radius of curvature of 15m.Then the size(diameter) of the image of the sun formed by the concave mirror is