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Assertion The pattern and position of fr...

Assertion The pattern and position of fringes always remain same even after the introduction of transport medium in a path of one of the slit
Reason The central fringe is bright or dark depends upon the initial phase difference between the two coherence sources.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true and R is not the correct explanation of A

C

A is true and R is false

D

Both A and R are false

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-WAVES OPTICS-EXERCISE -IB (ASSERTION AND REASON)
  1. A : In Young.s double slit experiment, the fringes become indistinct i...

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  2. A : When a light wave travels from a rarer to a denser medium, it loos...

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  3. Assertion The pattern and position of fringes always remain same even ...

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  4. A : Y.D.S.E, as the source slit width increases, fringe pattern gets l...

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  5. A : For interference fringes to be seen, the condition (s)/(S) lt (lam...

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  6. Statement-1: In Young's double slit experiment the two slits are at di...

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  7. A : When the coherent sources are far apart, interference pattern cann...

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  8. Assertion : When a thin transparent sheet is placed in front of both t...

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  9. A : The soap film in sun light is colourful. R : Thin films produce ...

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  10. A : Thin films such as soap bubble or a thin layer of oil on water sho...

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  11. Assertion:- Newton's rings are formed in the reflected system. When th...

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  12. Assertion (A) : The film which appears bright in reflected system will...

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  13. A : If a thin soap film is arranged vertically the spectrum of coloure...

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  14. Radio waves diffract around building, although light waves do not. The...

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  15. A : It is impossible to see an object as small as an atom regardless o...

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  16. A : Diffraction is common is sound but not common in light waves R :...

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  17. A : There is no specific important physical difference between interfe...

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  18. A : At the first glance, the top surf Morpho butterfly.s wing appears ...

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  19. A : Coloured spectrum is seen when we look through a muslin cloth. R...

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  20. Assertion : The clouds in sky generally appear to be whitish. Reason...

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