Question Detail

PHY 104 Diffraction and Interference of light waves Objective Question

Question

In the context of a diffraction grating, what does the variable 'd' represent in the grating equation dsinθn = nλ?
Options
A The distance to the screen.
B The wavelength of the incident light.
C The spacing between the slits.
Correct Answer
D The order of the bright fringe.
Correct Answer

Option C is the correct answer.

Detailed Explanation

On page 6, under the grating equation, it is explicitly stated: 'where d=spacing of slits'.

Hint

Recall the parameters defining the physical structure of the grating itself.

Question Info