For Young's double slit experiment, two statements are given belo… - Vidyadip

MCQ

For Young's double slit experiment, two statements are given below:
Statement I: If screen is moved towards the plane of slits, angular separation of the fringes remains constant.
Statement II: If the monochromatic source is replaced by another monochromatic source of larger wavelength, the angular separation of fringes increases.

A
Statement I is false but Statement II is true
✓
Both Statement I and Statement II is true
C
Both Statement I and Statement II is false
D
Statement I is true but Statement II is false

✓

Answer

Correct option: B.

Both Statement I and Statement II is true

(B)
$\Delta \theta=\frac{\lambda}{d}$
$\Delta \theta$ is proportional to I but independent of $D$.

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