COMEDK 2022 | Wave Optics Question 18 | Physics

In Young's double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is immersed in a liquid of refractive index $$\frac{4}{3}$$ without changing geometrical arrangement, the new fringe width will be

0.45 mm

0.4 mm

0.53 mm

0.30 mm

COMEDK 2021

MCQ (Single Correct Answer)

-0

An unpolarised beam of intensity I$$_0$$ is incident on a pair of nicols making an angle of 60$$^\circ$$ with each other. The intensity of light emerging from the pair is

$$I_0$$

$$\frac{I_0}{4}$$

$$\frac{I_0}{2}$$

$$\frac{I_0}{8}$$

COMEDK 2021

MCQ (Single Correct Answer)

-0

In Young's double slit experiment with sodium vapour lamp of wavelength 589 nm and slit 0.589 mm apart, the half angular width of the central maxima is

$${\sin ^{ - 1}}(0.01)$$

$${\sin ^{ - 1}}(0.0001)$$

$${\sin ^{ - 1}}(0.001)$$

$${\sin ^{ - 1}}(0.1)$$

COMEDK 2020

MCQ (Single Correct Answer)

-0

Two identical light waves, propagating in the same direction, have a phase difference $$\delta$$. After they superpose the intensity of the resulting wave will be proportional to

$$\cos\delta$$

$$\cos(\delta/2)$$

$$\cos^2(\delta/2)$$

$$\cos^2\delta$$

Previous Next

Questions Asked from MCQ (Single Correct Answer)

COMEDK 2024 Evening Shift (4) COMEDK 2024 Afternoon Shift (4) COMEDK 2024 Morning Shift (4) COMEDK 2023 Morning Shift (2) COMEDK 2023 Evening Shift (2) COMEDK 2022 (2) COMEDK 2021 (2) COMEDK 2020 (2)

COMEDK Subjects