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When a transparent parallel plate of uni...

When a transparent parallel plate of uniform thickness `t` and refractive index `mu` is interposed normally in the path of a beam of light, the optical path is

A

increased by `mut`

B

decreased by `mut`

C

decreased by `(mu-1)t`

D

increased by `(mu-1)t`

Text Solution

Verified by Experts

The correct Answer is:
D
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CP SINGH-WAVE NATURE OF LIGHT-EXERCISES
  1. In Young's experiment, monochromatic light is used to illuminate the t...

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  2. In a Young's double-silt experiment the source slit S and the two slit...

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  3. When a transparent parallel plate of uniform thickness t and refractiv...

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  4. Light of wavelength 5000 Å is travelling in air. A thin glass plate (m...

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  5. If a transparent medium of refractive index mu=1.5 and thickness t=2.5...

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  6. A thin sheet of glass (refractive index 1.5) of thickness 6 microns, i...

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  7. A thin mica sheet of thickness 2xx10^-6m and refractive index (mu=1.5)...

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  8. Interference fringes were produced in Young's double-slit experiment u...

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  9. When one of the slits of Young's experiment is covered with a transpar...

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  10. In the ideal double-slit experiment, when a glass-plate (refractive in...

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  11. A monochromatic beam of light fall on YDSE apparatus at some angle (sa...

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  12. In double slit experiment fringes are obtained using light of waveleng...

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  13. When exposed to sunlight, thin films of oil on water often exhibit bri...

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  14. When viewed in white light, soap bubbles show colours because of

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  15. A parallel beam of sodium light of wavelength 6000 Å is incident on a ...

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  16. If wavelength 4500 Å and 6000 Å are found to be missing in the reflect...

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  17. White light may be considered to be mixture of waves of lambda ranging...

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  18. A person sets up Young's experiment using a sodium lamp and placing tw...

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  19. The penetration of light into the region of geometrical shadow is call...

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  20. Diffraction effects are easier to notice in the case of sound waves th...

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