Home
Class 12
PHYSICS
A ray of light travelling through rarer ...

A ray of light travelling through rarer medium is incident at very small angle i on a glass slab and after refraction its velocity is reduced by 20%. The angle of deviation

A

`i/8`

B

`i/5`

C

`i/2`

D

`(4i)/5`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WAVE THEORY OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos
  • WAVE THEORY OF LIGHT

    TARGET PUBLICATION|Exercise CRITICAL THINKING|43 Videos
  • WAVE MOTION

    TARGET PUBLICATION|Exercise MCQ 7.1|61 Videos

Similar Questions

Explore conceptually related problems

Light is incident at an angle i on a glass slab. If the reflected ray is completely polarised , then the angle of refraction is

Light is incident at an angle i on a glass slab. The reflected ray is completely polarished . The angle of refraction is

A ray of light travelling in air is incident at 45^(@) on a medium of refractive index sqrt(2) . The angle of refractive in the medium is

The critical angle between a certain transparent medium and air is phi . A ray of light travelling through air enters the medium at an angle of incidence equal to its Brewster angle theta. Therefore, the angle of refraction is

A ray of light travelling in air is incident on the surface of glass slab at an angle of 40^(@) . If the ray is deviated through 18^(@) , determine critical angle for the glass-air interface.

A ray of light is incident on a glass slab at an angle of 45^(@) . If refractive index of glass be 1.6, what is the angle of refraction ?

The ray of light travels from raer medium to denser medium of refractive index mu . The angle of incidence of twice the angle of refraction. The angle of incidence is given by

A ray of lighyt is incident at an angle I on a glass slab of refractive index mu . The angle between reflected and refracted light is 90^@ Then the relationship between I and mu is

TARGET PUBLICATION-WAVE THEORY OF LIGHT -COMPETITIVE THINKING
  1. A ray of light is incident on the surface of seperation of a medium at...

    Text Solution

    |

  2. A light is travelling from air a medium the velocity of light in a me...

    Text Solution

    |

  3. A ray of light travelling through rarer medium is incident at very sma...

    Text Solution

    |

  4. The refractive indices of water and galss w.r.t. air are 1.3 and 1.5 r...

    Text Solution

    |

  5. A ray of light is icident on a glass plate of refractive index 1.5. Th...

    Text Solution

    |

  6. A wave of light having frequency 4 xx 10^(14)Hz. And speed of light 3...

    Text Solution

    |

  7. The change in wavelenght of light of frequency 4 xx 10 ^(14)Hz. When i...

    Text Solution

    |

  8. The wavelenth of light is 5000 Å . Find the wave number.

    Text Solution

    |

  9. If the wavelength of light is 4000 Å, then the number of waves in 1 mm...

    Text Solution

    |

  10. For a radiation of 8 GHz passing though air. The number of waves passi...

    Text Solution

    |

  11. A light wave in air enters a medium of refractive index (4)/(3). If t...

    Text Solution

    |

  12. A light passes through glass slabv of refractive index 1.5 and thickne...

    Text Solution

    |

  13. Light passess through glass of refractive index 1.5 . What is the tim...

    Text Solution

    |

  14. The ratio of velocities of light in glass that in whater is ( refract...

    Text Solution

    |

  15. Time taken by the light ot travel through 5 cm orf glass is same is ...

    Text Solution

    |

  16. A ray of light is incident normally on a glass slab of thickness 5 cm ...

    Text Solution

    |

  17. A paralel beam of monochromatic light is incident on a glass slab at a...

    Text Solution

    |

  18. Light travels through a glass plate of thickness t and refractive inde...

    Text Solution

    |

  19. The time taken by the sunlight to reach the bottom of a tank of depth...

    Text Solution

    |

  20. When the same monochromatic ray of light travels through glass slab...

    Text Solution

    |