The intensity of reverberation is higher in a closed and empty house.

What is the reverberation?

What causes reverberation?

The unit of intensity of electric field is

Define intensity of magnetisation.

Write short note on Reverberation.

Respiration in higher organisms is

As the intensity of incident light increases

On investigation of light from three different stars A, B and C, it was found that in the spectrum of A, the intensity of red colour is maximum, in B the intensity of blue colour is maximum and in C the intensity of yellow colour is maximum. From these observations, it can be concluded that