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Velocity of electromagnetic wave having ...

Velocity of electromagnetic wave having wavelength 5000 Å in medium of refractive index 2 is .....

A

`2xx10^(8)`

B

`1.5xx10^(8)`

C

`3xx10^(8)`

D

`1.5xx10^(9)`

Text Solution

Verified by Experts

The correct Answer is:
B
`n=(c)/(v)`
`:.v=(c)/(v)=(3xx10^(8))/(2)=1.5xx10^(8)m//s`
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KUMAR PRAKASHAN-WAVE OPTICS-SECTION-D (MULTIPLCE CHOICE QUESTIONS (MCQS)) (MCQS FROM DARPAN BASED ON TEXTBOOK)
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  2. In a two tourmalines experiment, the polariser and analyser are crosse...

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  3. In a arrangement of Young experiment the central fringe of interferenc...

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  4. Two beams of light of intensity I(1), and I(2)interfere to give an int...

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  5. In Young's double slit experiment if the width of 4^(th) bright fringe...

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  6. The diameter of the pupil of human eye is 2.5 mm. Assuming the wavelen...

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  7. Unpolarised light falls first on polarizer Pan then on analyzer A. If ...

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  8. A plane polarized light is incident normally on a tourmaline plate. It...

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  9. Light of wavelength lambda is incident on slit of width d. The resulti...

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  10. If the wavelength of light is 4000 A, then the number of waves in 1 mm...

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  11. Velocity of electromagnetic wave having wavelength 5000 Å in medium of...

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  12. A diffraction pattern is formed by blue light, if blue light is replac...

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  13. In Fraunhoffer diffraction by a single slit, the width of the slit is ...

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

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  15. If the wavelength of light used is 6000 Å. The angular resolution of t...

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  16. Match the terms in column I with those in column II

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  17. Which of the following is wrong for interference fringes?

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  18. A ray of light travelling in impure water is incident on a glass plate...

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  19. In a Young double slit experiment, the width of the source slit is inc...

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  20. V(radial) is considered…….when the source moves away from the observer...

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