Wave Optics-Young's Double Slit Experiment (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 1 - 3 of 4

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Question number: 1

» Wave Optics » Young's Double Slit Experiment

Appeared in Year: 2010

MCQ▾

Question

In Young’s double slit experiment, the distance between the two slits is 0.1 mm, the distance between the slits and the screen is 1 m and the wavelength of the light used is 600 nm. The intensity at a point on the screen is 75 % of the maximum intensity. What is the smallest distance of this point from the central fringe?

Choices

Choice (4) Response
a.

0.5 mm

b.

1.5 mm

c.

1.0 mm

d.

2.0 mm

Question number: 2

» Wave Optics » Young's Double Slit Experiment

Appeared in Year: 2011

MCQ▾

Question

In a Young’s double slit set-up, light from a laser source falls on a pair of very narrow slits separated by 1.0 micrometer and bright fringes separated by 1.0 millimeter are observed on a distant screen. If the frequency of the laser light is doubled, what will be the separation of the bright fringes?

Choices

Choice (4) Response
a.

2.0 mm

b.

0.25 mm

c.

1.0 mm

d.

0.5 mm

Question number: 3

» Wave Optics » Young's Double Slit Experiment

Appeared in Year: 2012

MCQ▾

Question

In a Young’s double slit experiment the intensity of light at each slit is Ι0. Interference pattern is observed along a direction parallel to the line S1 S2 on screen S.

Basic set up of Young’s double slit experiment

Basic Set Up of Young’S Double Slit Experiment

In figure a basis set up of Young’s double slit experiment is shown, in which two slits S1 and S2 in front of S

The minimum, maximum, and the intensity averaged over the entire screen are respectively.

Choices

Choice (4) Response
a.

0, 4Ι0, 2Ι0

b.

0, 4Ι0, Ι0

c.

0, 2Ι0, Ι0

d.

I 0,2I0,3I02

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