The product of frequency and wavelength is equal to:
Time period
Amplitude
Wave speed
Wave energy
The water waves obey the laws of:
Reflection
Refraction
Diffraction
All of these
The energy is transferred from one place of another:
through matter
through waves
both a and b
through vacuum
If there is no extension in the spring then the position is called:
Equilibrium position
unequilibrium
neutral equilibrium
stable equilibrium
Radio waves are:
Longitudinal waves
Transverse waves
Electromagnetic waves
The displacement produced in the spring is directly proportional to force is called:
Hook’s law
Boyle’s law
Newton’s law
Joule’s law
