If the distance between the first maximum and fifth minimum of a double-slit pattern…

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

If the distance between the first maximum and fifth minimum of a double-slit pattern is

7\text{ mm}

and the slits are separated by

0.15\text{ mm}

, with the screen

50\text{ cm}

from the slits, then the wavelength of the light used is (1)

600\text{ nm}

(2)

525\text{ nm}

(3)

467\text{ nm}

(4)

420\text{ nm}