Home
Class 12
PHYSICS
The angle of a prism is A. One of its re...

The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first returns back through the same path after sufferin reflection at the silvered surface. The refractive index `mu`, of the prism

A

`2sinA`

B

`2cosA`

C

`1/2cosA`

D

`tanA`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - D)|16 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - B)|35 Videos

  • PHYSICAL WORLD

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (Section-B)|4 Videos

  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

    AAKASH INSTITUTE ENGLISH|Exercise Assignment SECTION - D (Assertion & reason type Question)|10 Videos

Similar Questions

Explore conceptually related problems

Angle of prism is A and its one surface is silvered. Light rays falling at an angle of incidence 2 A on first surface return back through the same path after suffering reflection at second silvered surface. Refraction index of the material of prism is

An isosceles prism of angle A=30^(@) has one of its surfaces silvered. Light rays falling at an angle of incidence 60^(@) on the other surface retrace their path after reflection from the silvered surface. The refractive index of prism material is

Angle of a prism is 30^(@) and its refractive index is sqrt(2) and one of the surface is silvered. At what angle of incidence, a ray should be incident on one surface so that after reflection from the silvered surface, it retraces its path ?

A prism ABC of angle 30^(@) has its face AC silvered. A ray of light incident at an angle of 45^(@) at the face AB retraces its path after refraction at face AB and reflection at face AC . The refractive index of the material of the prism is

An isosceles prism has one of the refracting surfaces silvered. A ray of light is incident normally on the refracting face AB. After two reflections, the ray emerges from the base of the prism perpendicular to it. Find the angle of the prism.

At what angle should a ray of light be incident on the face of a prism of refracting angle 60^(@) so that it just suffers total internal reflection at the other face ? The refractive index of the prism is 1.524.

One face of a prism with a refrective angle of 30^@ is coated with silver. A ray of light incident on another face at an angle of 45^@ is refracted and reflected from the silver coated face and retraces its path. What is the refractive index of the prism?

One face of a prism with a refrective angle of 30^@ is coated with silver. A ray of light incident on another face at an angle of 45^@ is refracted and reflected from the silver coated face and retraces its path. What is the refractive index of the prism?

The angle of a prism is 60^(@) and its refractive index is sqrt(2) . The angle of minumum deviation sufferred by a ray of light in passing through it is

Find the angle of deviation suffered by the light ray shown in figure. The refractive index mu= 2.0 for the prism material.

AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - C)
  1. Two identical thin plano convex glass leses (refractive index 1.5) eac...

    Text Solution

    |

  2. If the focal length of objective lens is increased then magnifying pow...

    Text Solution

    |

  3. The angle of a prism is A. One of its refracting surfaces is silvered....

    Text Solution

    |

  4. A plano- convex lens fits exactly into a plano- concave lens. Their pl...

    Text Solution

    |

  5. For a normal eye, the cornea of eye provides a converging power of 40D...

    Text Solution

    |

  6. The magnifying power of a teloscope is 9. When it is adjusted for para...

    Text Solution

    |

  7. A ray of light is incident at small angle I on the surface of prism of...

    Text Solution

    |

  8. A concave mirror of focal length f(1) is placed at a distance of d fro...

    Text Solution

    |

  9. When a biconvex lens of glass having refractive index 1.47 is depped i...

    Text Solution

    |

  10. For the angle of minimum deviation of a prism to be equal to its refra...

    Text Solution

    |

  11. A rod of length 10 cm lies along the principal axis of a concave mirr...

    Text Solution

    |

  12. Which of the following is not due to total internal reflection ?

    Text Solution

    |

  13. A biconvex lens has a radius of curvalure of magnitude 20 cm Which one...

    Text Solution

    |

  14. A converging beam of rays is incident on a diverging lens. Having pass...

    Text Solution

    |

  15. A thin prism of angle 15^(@) made of glass of refractive index mu(1) =...

    Text Solution

    |

  16. A ray of light travelling in a transparent medium of refractive index ...

    Text Solution

    |

  17. A lens having focal length f and aperture of diameter d forms an image...

    Text Solution

    |

  18. The speed of light in media M(1) and M(2) is 1.5xx10^(8) m/s and 2.0x...

    Text Solution

    |

  19. A ray of light is incident on a 60^(@) prism at the minimum deviation ...

    Text Solution

    |

  20. Two thin lenses of focal length f(1) and f(2) are in contact and coaxi...

    Text Solution

    |