Light of wavelength$\lambda$ is normally incident on a diffraction grating G. On the screen S, the central line is at P and the first order line is at Q, as shown. The distance between adjacent slits in the grating is:
A) 3$\lambda$/5
B) 3$\lambda$/4
C) 4$\lambda$/5
D) 5$\lambda$/4
E) 5$\lambda$/3

Question

Light of wavelength$\lambda$ is normally incident on a diffraction grating G. On the screen S, the central line is at P and the first order line is at Q, as shown. The distance between adjacent slits in the grating is: 
A) 3$\lambda$/5 
B) 3$\lambda$/4 
C) 4$\lambda$/5 
D) 5$\lambda$/4 
E) 5$\lambda$/3

Quizplus · Accepted Answer

The Answer of Light of wavelength$\lambda$ is normally incident on a diffraction grating G. On the screen S, the central line is at P and the first order line is at Q, as shown. The distance between adjacent slits in the grating is: 
A) 3$\lambda$/5 
B) 3$\lambda$/4 
C) 4$\lambda$/5 
D) 5$\lambda$/4 
E) 5$\lambda$/3

Light of Wavelength λ\lambdaλ Is Normally Incident on a Diffraction Grating G

Light of Wavelength $\lambda$ Is Normally Incident on a Diffraction Grating G