When light of a certain wavelength is incident normally on a certain diffraction grating the line of order 1 is at a diffraction angle of 25°.The diffraction angle for the second order line is:
A)25°
B)42°
C)50°
D)58°
E)75°

Question

Quizplus · Accepted Answer

The diffraction angle for the second order line is larger than the first order. Using the grating equation, the angle for the second order is approximately 58°F.

When Light of a Certain Wavelength Is Incident Normally on a Certain