Quality of a musical note depends on
1). Fundamental frequency
2). Amplitude of the wave
3). Harmonics present
4). Velocity of sound in the medium
1. An object which absorbs all colours and reflects none appears:
2. Kirchhoff's laws are applicable to
3. When a vehicle passes, TV reception gets distorted. This is because
4. Which among the following is false about alpha particles?
5. Velocity of sound in air does not change with the change of
6. Electron microscope was invented by
7. The unit of Planck's constant is
8. In order to make an electromagnet you need a