MHT-CET Previous year questions Chapter-wise Physics Interference & Diffraction

If Path Difference between waves is 11λ/4 then the phase difference between two waves will be

For Minimum intensity the phase difference between two waves is

Two waves of amplitudes A1 and A2 superimpose with each other such that A1 > A2 . The difference between maximum and minimum amplitude is

Two coherent sources of intensity ratio α interface. In interface pattern I(max) – I(min) / I(max) + I(min) =

The distance of a point on the screen from two slits in biprism experiment is 1.8 x 10^-5 m and 1.23 x 10^-5 m. If wavelength of light used is 6000 A⁰, the fringe width formed at that point is

Two coherent monochromatic light beams of intensities ‘4I’ and ‘9I’ are superimposed. The maximum and minimum possible intensities in the resulting beam are

Resolving power of telescope increases when

Two coherent sources P and Q produce interference at point A on screen where there is a dark band which is formed between 4th bright band and 5th dark band. Wavelength of light used is 6000 A. The apth difference between PA and QA is

In biprism experiment the distance between source and eyepiece is 1.2m the distance between two virtual sources is 0.84 mm . Then the wavelength of light used if eyepiece is to be moved transversly through a distance of 2.799 cm to shift 30 fringes is

Light of wavelength λ is incident on a single slit of width a and the distance between slit and screen is D. In diffraction pattern, if slit width is equal to the width of the central maximum , then D is equal to