The number of waves contained in unit length of the medium is called

The number of waves in 7.5 cm length in vacuum is the same as the number of waves in 5 cm length of a medium . What is the refractive index of the medium ?

Phenomenon of bending of waves withoug a changed in medium is called

The charge deposited per unit length of cylinder is called as

The fall of potential per unit length of wire is called……..

In transverse wave, the contituent particles of the medium oscillate

Assertion : Wave number is the number pf waves per units length. Reason : Wave number =(1)/(lambda) .

The force exerted by electromagnetic wave on unit area of the surface is called.........

In a transverse wave, the particles of the medium

If velocity of light is taken as the unit of velocity and an year is taken as the unit of time, what is the unit of length? What is it called?

If the velocity of light is taken as the unit of velocity and one year is the unit of time, what must be the unit of length? What is it called?