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In Young's slit experiment, if the dista...

In Young's slit experiment, if the distance between two slits is halved and the distance between the slits and the screen is doubled then the width of fringe will be.....

A

unchanged

B

halved

C

doubled

D

quadrupled

Text Solution

Verified by Experts

The correct Answer is:
D
Fringe width `beta=(lamdaD)/(d)`,
`beta'=(lamda'D')/(d')=(lamdaxx2D)/(d//2),beta'=4(lamdaD)/(d)=4beta`
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ALLEN -WAVE OPTICS-Exercise 1 (Check your Grasp)
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  2. If the distance between the first maxima and fifth minima of a double-...

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  3. In Young's slit experiment, if the distance between two slits is halve...

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  4. 92 fringes are obtained in the definite distance R on screen by Young'...

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  5. In Young's experiment one slit is covered with a blue filter and the o...

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  7. In Young's double slit experiment if monochromatic light is replaced b...

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  8. In the Young's double slit experiment the central maxima is observed t...

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  9. As shown in the right figure, a point light source is placed at distan...

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  10. If one of the two slits of Young's double-slit experiment is painted s...

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  11. InYDSE,how many maxima can be obtained on the screen if wavelength of ...

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  12. In YDSE, the source placed symmetrically with respect to the slit is n...

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  13. A light wave travels through three transparent materials of equal thic...

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  14. In YDSE if a slab whose refractive index can be varied is placed in fr...

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  15. In a double slit experiment, instead of taking slits of equal widths, ...

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  16. A ray of light is incident on a thin film, As shown in figure, M and N...

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  17. Let S(1) and S(2) be the two slits in Young's double-slit experiment. ...

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  18. When light is refracted into a medium

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  19. Two point source separated by d=5mum emit light of wavelength lamda=2m...

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  20. Two coherent narrow slits emitting light of wavelength lamda in the sa...

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