HARD

JEE Main

IMPORTANT

Earn 100

In the Young's double slit experiment, the distance between the slits varies in time as $d (t) = d_{0} + a_{0} \sin ω t$ ; where $d_{0}, ω$ and $a_{0}$ are constants. The difference between the largest fringe width and the smallest fringe width obtained over time is given as:

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Important Questions on Wave Optics

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 27 July 2021 Shift 1>Q 8

In Young's double slit experiment, if the source of light changes from orange to blue then:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main 16 March 2021 Shift 1>Q 9

A fringe width of

6 mm

was produced for two slits separated by

1 mm

apart. The screen is placed

10 m

away. The wavelength of light used is

x

nm

. The value of

x

to the nearest integer is ______.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main 18 March 2021 Shift 1>Q 10

In Young's double slit arrangement, slits are separated by a gap of

0.5 mm

, and the screen is placed at a distance of

0.5 m

from them. The distance between the first and the third bright fringe formed when the slits are illuminated by a monochromatic light of

5890 \overset{o}{A}

is :-

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main 18 March 2021 Shift 2>Q 11

The speed of electrons in a scanning electron microscope is

1 \times 10^{7} {ms}^{- 1}

. If the protons having the same speed are used instead of electrons, then the resolving power of scanning proton microscope will be changed by a factor of:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main 18 March 2021 Shift 2>Q 12

A galaxy is moving away from the earth at a speed of $286 km s^{- 1}$ . The shift in the wavelength of a red line at $630 nm$ is $x \times 10^{- 10} m$ . The value of $x$ , to the nearest integer, is ___ .

[Take the value of the speed of the light $c$ , as $3 \times 10^{8} m s^{- 1}$ ]

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 24 Feb 2021 Shift 1>Q 13

In a Young's double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit-width. Find the ratio of the maximum to the minimum intensity in the interference pattern.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 24 Feb 2021 Shift 1>Q 14

An unpolarized light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emerging from the analyzer is measured as

100

Lumens. Now, if the analyzer is rotated around the horizontal axis (direction of light) by

30 °

in clockwise direction, the intensity of emerging light will be _______Lumens.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 19 - Wave Optics>JEE Main - 24 Feb 2021 Shift 2>Q 15

If the source of light used in a Young's double slit experiment is changed from red to violet:

In the Young's double slit experiment, the distance between the slits varies in time as dt=d0+a0 sinωt; where d0, ω and a0 are constants. The difference between the largest fringe width and the smallest fringe width obtained over time is given as:

Important Questions on Wave Optics

Learn and Prepare for any exam you want !

In the Young's double slit experiment, the distance between the slits varies in time as $d (t) = d_{0} + a_{0} \sin ω t$ ; where $d_{0}, ω$ and $a_{0}$ are constants. The difference between the largest fringe width and the smallest fringe width obtained over time is given as: