Question

• Timer Notes Evaluate Feedback Print Course Contents >> Online Lectures ... >> Chapter 22 ... » Bonus Question : Diffraction Grating ... Which one of the following actions would make the maxima in the interference pattern from a grating move further apart? O Decreasing the wavelength of the laser. O Decreasing the number of lines per length. O Increasing the distance to the screen. O Decreasing the distance to the screen. Submit Answer Tries 0/2 This discussion is closed. Send Feedback

Answer 1

Distance of maxima from center of screen is given by

y=$\lambda$D/d

Where

$\lambda$ is wavelength of light

D is distance of screen from grating

and d is slit width.

If we increase the distance of screen then maxima move further apart.

So

3rd option is correct.