In Young's double slit experiment the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central and fourth bright fringe is measured to be 1.2 cm. The wavelength of light used in the experiment is
A
6 × 10⁻⁷ m
B
3 × 10⁻⁷ m
C
1.5 × 10⁻⁷ m
D
5 × 10⁻⁶ m

Question

In Young's double slit experiment the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central and fourth bright fringe is measured to be 1.2 cm. The wavelength of light used in the experiment is

A

6 × 10⁻⁷ m

B

3 × 10⁻⁷ m

C

1.5 × 10⁻⁷ m

D

5 × 10⁻⁶ m

Accepted Answer

6 × 10⁻⁷ m

Answer

3 × 10⁻⁷ m

Answer

1.5 × 10⁻⁷ m

Answer

5 × 10⁻⁶ m

STANDARD Physics Young's Double Slit Experiment MCQ Question

Correct Answer

Detailed Explanation

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