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The path difference between two waves is...

The path difference between two waves is

A

`(xD)/d`

B

`(xd)/D`

C

`(xD)/(lamda)`

D

`(x lamda)/d`

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The correct Answer is:
B
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TARGET PUBLICATION-INTERFERENCE AND DIFFRACTION-EVALUATION TEST
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  3. In a Young's double slit experiment, the separation between the slits ...

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  4. A double slit apparatus is immersed in liquid of refractive index mu(m...

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  5. In a double slit experiment, the separation between the slits is d and...

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  6. In Young's double slit experiment, one of the slit is wider than other...

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  7. In a single slit diffraction experiment, first minimum for a light of ...

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  8. A beam of 8mW power and wavelength 6000Å has aperture 2 mm. If it is f...

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  9. Human eye is most sensitive to 5550Å and diameter of pupil is 1.8 mm. ...

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  10. Two towers on the top of two hills are 40 km apart. The line joining ...

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  11. If the monochromatic source in Young's double slit experiment is white...

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  12. White light is used to illuminate the two slits in Young's double slit...

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  13. In a Young's double slit experiment, the slits separated by 1 mm are i...

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  14. From a TV tower waves are sent normally to a plane reflector. A detect...

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  16. A parallel beam of x-rays is incident normally on a narrow slit. A flu...

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  17. The aperture of the larges telescope in the world is about 5m. If the ...

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  18. A slit whose width is 5.0 cm is irradiated with microwaves of waveleng...

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  19. In a single slit diffraction experiment first minima for lambda1 = 660...

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  20. By passing sodium light (lamda=5896xx10^(-10)m) through two slits 0....

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  21. Assertion: An excessively thin film appear black in reflected light. ...

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