Home
Class 12
PHYSICS
Compare the dispersive powers of two pri...

Compare the dispersive powers of two prisms if one of them deviates the blue and red rays through `10^(@)` and `6^(@)` respectively and the second prism through `8^(@)` and `4.5^(@)`

A

0.69

B

0.79

C

0.89

D

0.99

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - C)|76 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

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

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - A)|42 Videos

  • PHYSICAL WORLD

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section-B)|5 Videos

  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

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

Similar Questions

Explore conceptually related problems

A glass prism A deviates the red and blue rays through 10^(@) and 12^(@) respectively . A second prism (B) deviates them through 8^(@) and 10^(@) respectively . What is the ratio of their dispersive powers ?

A glass prism deviates the red and blue colour rays through 8^(@) and 10^(@) , respectively. A second prism of equal refracting angle deviates them through 10^(@) and 12^(@) respectively. Calculate the ratio of their dispersive powers.

A prism of a certain angle deviates the red and blue rays by 8^@ and 12^@ respectively. Another prism of the same angle deviates the red and blue rays by 10^@ and 14^@ respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

Two small angled prisms A and B deviate the blue rays by 6^(@) and 8^(@) and the red rays by 4^(@) and 6^(@) respectively. Which prism has a greater dispersive power ?

Suppose a small angled prism of 6^(@) deviates a ray through 3^(@) , then the refractive index is

If the refractive indices of a prism for red, yellow and violet colours be 1.61, 1.63 and 1.65 respectively, then the dispersive power of the prism will be

When does a ray passing through a prism deviate away from the base of the prism ?

Two small angled prisms A and B deviate the blue rays by 7 0 and 9 0 and the red rays by 5 0 and 7 0 respectively. Which prism has a greater . p dispersive power ?

White light its passed through a prism of 5^@ . If refractive indices for red and blue rays are 1.641 and 1.659 respectively, calculate the angular dispersion of the prism.

Prism angle of a prism is 10^(@) . Their refractive index for red and violet colour is 1.51 and 1.52 respectively. Then find the dispersive power.

AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - B)
  1. A short linear object of length b lies along the axis of a concave mir...

    Text Solution

    |

  2. In optical fibre, refractive index of inner part is 1.68 and refractiv...

    Text Solution

    |

  3. Compare the dispersive powers of two prisms if one of them deviates th...

    Text Solution

    |

  4. A thin prism of angle 6^(@) made up of glass of refractive index 1.5 i...

    Text Solution

    |

  5. In a medium of refractive index 1.6 and having a convex surface has a ...

    Text Solution

    |

  6. A point object is situated at a distance of 36 cm from the centre of t...

    Text Solution

    |

  7. A denser medium of refractive index 1.5 has a concave surface of radiu...

    Text Solution

    |

  8. A light ray is travelling from air to glass. True reflected and refrac...

    Text Solution

    |

  9. A light wave travels from glass to water. The refractive index for gla...

    Text Solution

    |

  10. In the diagram, a ray is passing through a broken prism, find angular ...

    Text Solution

    |

  11. A glass slab (mu=1.5) of thickness 6 cm is placed over a paper. What i...

    Text Solution

    |

  12. Ray diagram for two lenses kept at some distance given in the diagram,...

    Text Solution

    |

  13. A ball is projected from top of the table with initial speed u at an a...

    Text Solution

    |

  14. In displacement method, convex lens forms a real image of an object fo...

    Text Solution

    |

  15. Two parallel rays of red and violet colour passed through a glass slab...

    Text Solution

    |

  16. A plane glass is kept over a coloured word 'VIBGYOR', where colour of ...

    Text Solution

    |

  17. The near point of a person is 75 cm. In order that he may be able to r...

    Text Solution

    |

  18. If a lens is moved towards the object from a distance of 40 cm to 30 c...

    Text Solution

    |

  19. A convex lens of power +2.5D is in contact with a concave lens of foca...

    Text Solution

    |

  20. When a telescope is in normal adjusment, the distance of the objective...

    Text Solution

    |