Home
Class 12
PHYSICS
An equilateral prism is placed on a hori...

An equilateral prism is placed on a horizontal surface. A ray PQ is incident onto it. For minimum deviation `

A

PQ is horizontal

B

QR is horizontal

C

RS is horizontal

D

Either PQ or RS is horizontal

Text Solution

Verified by Experts

The correct Answer is:
B
During minimum deviation the ray inside the prism is parallel to the base of the prism in case of an equilateral prism.
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

An equilateral prism is placed on a horizontal surface. A ray PQ is incident onto it. For minumum deviation,

An equilateral prism is placed on the prism table of a spectrometer in the position of minimum deviation. If the angle of incidence is 60º, the angle of deviation of the ray is :

Determine the speed of light through an equilateral prism for which a ray of light incident on it shows a minimum deviation of 30^(@) .

A ray of light is incident on an equilateral glass prism placed on a horizontal table. Which of the following is true for the condition of minimum deviation ?

Angle of minimum deviation is equal to the angle prism A of an equilateral glass prism. The angle incidence at which minimum deviation will be obtained is

A parallel glass slab of refractive index sqrt3 is placed in contact with an equilateral prism of refractive index sqrt2 . A ray is incident on left surface of slab as shown. The slab and prism combination is surrounded by air. The magnitude of minimum possible deviation of this ray by slab-prism combination is:

When an equilateral prism is placed in the position of minimum deviation , the incident ray makes an angle of 37^(@) with the refracting surface . What is the material of the prism , if the angle of 37^(@) with the refracting surface . What is the angle of minimum deviation ?

Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incidence at which minimum deviation will be obtained is

ALLEN-GEOMETRICAL OPTICS-EXERCISE-05 (B)
  1. A ray of light is incident at the glass-water interface at an angle I,...

    Text Solution

    |

  2. White light is incident on the interface of glass and air as shown in ...

    Text Solution

    |

  3. An equilateral prism is placed on a horizontal surface. A ray PQ is in...

    Text Solution

    |

  4. A point object is placed at the centre of a glass sphere of radius 6cm...

    Text Solution

    |

  5. A container is filled with water (mu=1.33) upto a height of 33.25 cm. ...

    Text Solution

    |

  6. A convex lens if in contact with concave lens. The magnitude of the ra...

    Text Solution

    |

  7. A point object is placed at distance of 20 cm from a thin plane - con...

    Text Solution

    |

  8. A biconvex lens of focal length f forms a circular image of radius r o...

    Text Solution

    |

  9. A ray of light travelling in water is incident on its surface open to ...

    Text Solution

    |

  10. In an experiment to determine the focal length (f) of a concave mirror...

    Text Solution

    |

  11. Two beams of red and violet colours are made to pass separately throug...

    Text Solution

    |

  12. A light beam is traveling from Region I to region IV (refer figure). T...

    Text Solution

    |

  13. A ball is dropped from a height of 20 m above the surface of water in ...

    Text Solution

    |

  14. A biconvex lens of focal length 15 cm is in front of a plane mirror. T...

    Text Solution

    |

  15. A ray of light travelling in the direction (1)/(2)(hati,+sqrt3hatj) is...

    Text Solution

    |

  16. The image of an object, formed by a plano-convex lens at a distance of...

    Text Solution

    |

  17. A right angled prism of refractive index mu(1) is placed in a rectangu...

    Text Solution

    |

  18. A point source S is placed at the bottom of a transparent block of hei...

    Text Solution

    |

  19. Four combinations of two thin lenses are given in List I. The radius o...

    Text Solution

    |

  20. Two identical glass rods S(1) and S(2) (refractive index=1.5) have one...

    Text Solution

    |