NEET | 2016Wave OpticsHard

Question

In a diffraction pattern due to a single slit of width ‘a’, the first minimum is observed at an angle 30o whenlight of wavelength 5000 Aois incident on the slit. The first secondary maximum is observed at an angle of:

Options

A.

sin-114

B.

sin-123

C.

sin-112

D.

sin-134

Solution

a sin 30 = λ
a sin θ=3λ2
sin θsin 30=32
sin θ=32×12
sin θ=34
θ=sin 34

Create a free account to view solution

View Solution Free
Topic: Wave Optics·Practice all Wave Optics questions

More Wave Optics Questions

The intensity of the central fringe obtained in the interference pattern due to two indentical slit sources is I. When o...A double slit experiment is per formed with light of wavelength 500nm. A this film of thickness 2μ m and refractive...Distance between circular obstacle and screen is 1m and obstacle covers one HPZ. Intensity at central point is I0. If di...In Fraunhoffer diffraction the centre of diffraction image is :...Which of the following statement is true for a zone plate :...