Question Detail

PHY 104 Diffraction and Interference of light waves Objective Question

Question

What do 'bright fringes' and 'dark fringes' represent on the screen in Young's experiment?
Options
A Bright fringes are regions of destructive interference, dark fringes are regions of constructive interference.
B Bright fringes are regions where light is absorbed, dark fringes are regions where light is transmitted.
C Bright fringes are regions of constructive interference, dark fringes are regions of destructive interference.
Correct Answer
D Bright fringes are caused by reflection, dark fringes by refraction.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 2 explains that 'points of interference maxima form visible bright rows called bright fringes or maxima' and 'Dark regions called dark fringes or minima result from destructive interference'.

Hint

The terms 'maxima' and 'minima' are key to understanding the fringe types.

Question Info