Home
Class 12
PHYSICS
Two beams of red and violet colours are ...

Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is ` 60degree`). In the position of minimum deviation, the angle of refraction will be

A

`30^(@)` for both the colours

B

greater for the violet colour

C

greater for the red colour

D

equal but not `30^(@)` for both the colours

Text Solution

Verified by Experts

The correct Answer is:
A

In the position of minimum deviation angle of refraction r = `(A)/(2)`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If the angle of a prism is 60° and angle of minimum deviation is 40°, then the angle of refraction will be ....

In an equilateral prism if incident angle is 45 then minimum deviation is……

The angle of incidence for a ray of light at a refracting surface of a prism is 45^@ . The angle of prism is 60^@ . If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are

The refracting angle of a prism is A and refractive index of the material of the prism is cot(A/2) .The angle of minimum deviation is :

If the refractive index of a material of an equilateral prism is sqrt3 , then angle of minimum deviation will be ..... .

Find the lateral shift of a light ray while it passws through a parallel glass slab of thickness 10 cm places in air. The angle of incidence in air is 60^(@) and the angle of refraction in glass is 45^(@) .

Refractive index of prism of prism angle 6^@ is 1.5, then minimum deviation is ...... .

A beam of monochromatic light is incident at i= 50^(@) on one face of an equilateral prism, the angle of emergence is 40^(@) , then the angle of minimum deviation is :

ALLEN -GEOMETRICAL OPTICS-EXERCISE-05 (B)
  1. An equilateral prism is placed on a horizontal surface. A ray PQ is in...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. A parallel beam of light is incident from air at an angle alpha on the...

    Text Solution

    |

  20. A small object is placed 50 cm to the left of a thin convex lens of fo...

    Text Solution

    |