During simple harmonic motion of a body, the energy at the extreme position is:
1. | both kinetic and potential |
2. | is always zero |
3. | purely kinetic |
4. | purely potential |
If a body is executing simple harmonic motion with frequency 'n', then the frequency of its potential energy is:
1. | 3n | 2. | 4n |
3. | n | 4. | 2n |