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In Young's experiment, dark fringe of 5t...

In Young's experiment, dark fringe of 5th order is obtained at point P on the screen so path difference at point P on the screen will be ......

A

`(10 lambda)/(2)`

B

`(11lambda)/(2)`

C

`(9lambda)/(2)`

D

`(12lambda)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
For dark fringe,
Path difference `=(2n-1)(lambda)/(2)=(9lambda)/(2)[ :.n=5]`
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KUMAR PRAKASHAN-WAVE OPTICS-SECTION-D (MULTIPLCE CHOICE QUESTIONS (MCQS)) (MCQS FROM DARPAN BASED ON TEXTBOOK)
  1. The shape of interference fringe obtained on screen by using monochrom...

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  2. Path difference between two waves superposing at one point is 132, so ...

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  3. In Young's experiment, dark fringe of 5th order is obtained at point P...

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  4. In Young's experiment distance between 5^(th) dark fringe and 3rd brig...

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  5. In double slit experiment, the point on the screen where 3^(rd) order ...

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  6. If path difference between two wave superposing at a point is (3)/(2) ...

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  7. In Young's experiment distance between two consecutive dark fringes is...

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  8. If white light is used instead of sodium light in the Young's experime...

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  9. only the central fringe will be white, all other will look colourful. ...

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  10. In Young's experiment if mica disc of thickness t and refractive index...

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  11. A glass plate of thickness d and refractiv index n is placed on the pa...

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  12. In the Young's double slit experiment, the slits are 0.4 cm apart and ...

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  13. 92 fringes are obtained in the definite distance R on screen by Young'...

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

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  15. In the Young's experiment, when a plate of thickness lambda and refrac...

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  16. In a Young's experiment, the width of one of the two slits is double t...

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  17. Young's double slit experiment is made in a liquid. The 10th bright fr...

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  18. If the two slits in Young's double slit experiment have width ratio 1:...

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  19. The phenomena of light passes through sleet and bends at edges of slit...

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  20. ...... found the phenomena of diffraction.

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