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In a Laser beam the photons emitted are...

In a Laser beam the photons emitted are

A

same wavelength

B

coherent

C

of same velocity

D

All the avove

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The correct Answer is:
D
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NARAYNA-WAVE OPTICS-C . U . Q (interference)
  1. A wavefront is an imaginary surface where

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  2. Huygens wave theory is used

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  3. In a Laser beam the photons emitted are

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  4. The amplitudes of two interfering waves are 4 cm and 3 cm respectively...

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  5. Two coherent waves are represented by y(1)=a(1)cos(omega) t and y(2)=a...

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  6. Two light waves are represented by y(1)=a sin(omega)t and y(2)= a sin(...

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  7. Laser light is considered to be coherent because it consists of

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  8. Two waves having the same wave length and amplitude but having a const...

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  9. Light waves spreading from two sources produces steady inteference onl...

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  10. For different independent waves are represented by a) Y(1)=a(1)sin o...

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  11. Interference fringes in Young's double slit experiment with monochroma...

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  12. The necessary condition for an interference by two sources of light is...

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  13. For the sustained interference of light, the necessary condition is th...

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  14. When interference of light takes place

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  15. Which of the following is conserved when light waves interfere

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  16. The path difference between two interfering waves at a point on screen...

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  17. Interference is produced with two coherent sources of same intensity. ...

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  18. For constructive interference between two waves of equal wavelength, t...

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  19. Two coherent waves each of amplitude 'a' traveling with a phase differ...

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  20. In young's experiment of double slit, the number of times the intensit...

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