Consider a thin film with n=1.42, immersed in air, and a light of 650nm wavelength. determine the thickness of film that will create reflected light that constructively interferes.

Explanation:

For constructive interference, condition is that ( m=0,1,2.....)

Take for m=1,

Given that, the refractive index of a thin film is,

And the wavelength of the light is,

Now,

Therefore, the thickness of film which create reflected light is

d they tend to lose electrons and become cations.

explanation:

the answer is a)

mark brainliest