Home
Class 12
PHYSICS
When a light wave in a rarer medium is r...

When a light wave in a rarer medium is reflected from the surface of an optically denser medium, it suffers a phase change of (in radian)

A

`2pi`

B

`pi"/"2`

C

`pi`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WAVES OPTICS

    AAKASH SERIES|Exercise EXERCISE -IA (DIFFRACTION)|33 Videos

  • WAVES OPTICS

    AAKASH SERIES|Exercise EXERCISE -IA (POLARASATION)|29 Videos

  • WAVES OPTICS

    AAKASH SERIES|Exercise EXERCISE -III (POLARISITION)|10 Videos

  • WAVES

    AAKASH SERIES|Exercise EXERCISE-III (Doppler effect :)|15 Videos

Similar Questions

Explore conceptually related problems

When a light ray from a rarer medium is refracted into a denser medium, its

The change in phase if a wave is reflected from a rigid surface is

A : If a wave moving in a rarer medium , gets reflected at the boundary of a denser medium , then it encounter a sudden change in phaso or pi . R : If a wave propagating in a denser medium , gets reflected from rarer medium , then there will be no abrupt phase change .

What do you mean by optically rarer medium?

(a) What are standing waves or stationary waves ? (b) Show that when a transverse wave travels from a rarer to a denser medium it gets reflected with a phase change of pit . Also prove that wien a transverse wave travels from a denser to rarer medium it gets reflected from the surface separating the two media without any phase change.

When a light wave passes from a rarer medium to a denser medium, there will be a phase change of pi radians. This difference brings change in the conditions for constructive and destructive interference. This phenomena also reasons the fromation of interference pattern in thin films like, oily layer, soap film, etc., but has no reason on the shifting of fringes from the central portion outward. The shift is dependent on the refractive index of the material as per the relation, Delta y = (mu - 1) t On introducing a transparent slab (mu) the central fringe shifts to the point originally occupied by the fifth bright fringe. The thickness of the slab is

When a light wave passes from a rarer medium to a denser medium, there will be a phase change of pi radians. This difference brings change in the conditions for constructive and destructive interference. This phenomena also reasons the fromation of interference pattern in thin films like, oily layer, soap film, etc., but has no reason on the shifting of fringes from the central portion outward. The shift is dependent on the refractive index of the material as per the relation, Delta y = (mu - 1) t The condition for constructive interference in Lloyd's single mirror experiment is the path difference which is equal to

When a ray of light travles from an optically more denser medium to an optically less denser medium, the angle of incidence is always _____ than the angle of refraction.

When a ray of light travels from an optically less denser medium to an optically more denser medium, the angle of incidence is always less than angle of refraction.

When a ray of light from air enters a denser medium, it :

AAKASH SERIES-WAVES OPTICS-EXERCISE -IA
  1. Geometrical shadow is formed due to the phenomenon of

    Text Solution

    |

  2. Nature of wave front depends on

    Text Solution

    |

  3. When a light wave in a rarer medium is reflected from the surface of a...

    Text Solution

    |

  4. Two waves are said to be coherent, if they have

    Text Solution

    |

  5. Which of the following chemical is a base analogue ?

    Text Solution

    |

  6. A pair of coherent sources may be

    Text Solution

    |

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

    Text Solution

    |

  8. Choose the correct statement

    Text Solution

    |

  9. The transverse nature of electromagnetic waves is proved by which of t...

    Text Solution

    |

  10. Of the following which pair can be coherent sources

    Text Solution

    |

  11. Which of the following is not a condensation polymer?

    Text Solution

    |

  12. To demonstrate the phenomenon of interference, we require two sources ...

    Text Solution

    |

  13. Interference is possible in

    Text Solution

    |

  14. State one condition for obtaining a sustained interference of light.

    Text Solution

    |

  15. Colours of soap film in sun light is due to

    Text Solution

    |

  16. In Young.s double slit experiment sodium light is replaced by blue lam...

    Text Solution

    |

  17. In Young.s double slit experiment the band width is minimum for the co...

    Text Solution

    |

  18. If interference is complete or cent percent then the frequency of obse...

    Text Solution

    |

  19. The graph between the separation of the slits and fringe width in Youn...

    Text Solution

    |

  20. In Young.s double slit experiment both the slits are similar. If width...

    Text Solution

    |