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Pleease provide me the solution of question given in the image along with the options. Its correct answer according to answer key is (4)

Pleease provide me the solution of question given in the image along with the options. Its correct answer according to answer key is (4)

Question Image
Grade:12

1 Answers

Rishwanth
70 Points
3 years ago
Yes option four is correct
Path difference is 2D+£/2=£  [£ indicates wavelength]
£=460nm
Here the underlined part indicates that the path difference is half of the wavelength occurs when the light ray is incident from rarer refractive index to higher refractive index.
Hope it clears.
 

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