In Young's experiment, the width of fringes obtained with light of wavelength $6000 \overset{°}{A}$ is $2.0 mm$ . What will be the fringe width (in $mm$ ) if the entire apparatus is immersed in a liquid of refractive index $1.33$ ?

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Important Questions on Wave Optics and Interference

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>Multiple Choice Questions>Q 6

When a plane electromagnetic wave enters from one medium to another, which of the following remains unchanged?

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>Multiple Choice Questions>Q 8

Which of the following e.m. waves are used in telecommunications?

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12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 8

In Young's double slit experiment, using light of wavelength

400 nm

, interference fringes of width '

X

' are obtained. The wavelength of light is increased to

600 nm

and the separation between the slits is halved. If one wants the observed fringe width on the screen to be same in the two cases, find the ratio of the distance between the screen and the plane of interfering sources with the two arrangements.

HARD

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 9

Find the ratio of intensities at two points on a screen in Young's double slit experiment when waves from the two slits have a path difference of (i) 0 and (ii)