Home
Class 12
PHYSICS
A prism is shown in the figure with pris...

A prism is shown in the figure with prism angle `75^(@)` and refractive index `sqrt(3)`. A light ray incidents on a surface at incident angle `theta`. Other face is coated with a medium of refractive index n. for ` theta le 60^(@)` ray suffers total internal reflection find value of `n^(2)`.

Text Solution

Verified by Experts

The correct Answer is:
1.5
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    MOTION|Exercise Exercise - 4 | Level-I|25 Videos

  • FLUID

    MOTION|Exercise Exercise-4 level-II|5 Videos

  • GRAVITATION

    MOTION|Exercise Exercise - 4 Section - B Previous Years Problems|15 Videos

Similar Questions

Explore conceptually related problems

Light ray is incident on a prism of angle A=60^(@) and refractive index mu=sqrt(2) .the angle of incidence at which the emergent ray grazes the surface is given by

Light ray is incident on a prism of angle A=60^(@) are refractive index mu=sqrt(2) . The angle of incidence which the emergent rays grazes the surface is given

If a light ray incidents normally on one of the faces of the prism of refractive index 2 and the emergent ray just grazes the second face of the prism, then the angle of deviation is

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.

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 .

A ray of light passes from vaccum into a medium of refractive index n. If the angle of incidence is twice the angle of refraction, then the angle of incidence is

A ray of light passes from vaccume into a medium of refractive index n. if the angle of incidence is twice the angle of refraction, then the angle of incidence is

A equilateral glass prism has a refractive index sqrt (2) . A light ray is incident at 45^ @ on one face.Total deviation of ray after refraction from second surface is n times15^(0) where 'n' is

A ray of light suffers minimum deviation when incident on an equilateral prism of refractive index sqrt2 . What is the angle of incidence ?

A ray of light is incident normally on one of the faces of a prism of apex angle 30^(@) and refractive index sqrt(2) . The angle of deviation through prism is

MOTION-GEOMETRICAL OPTICS-Exercise - 4 | Level-II
  1. A transparent thin film of uniform thickness and refractive index n(1)...

    Text Solution

    |

  2. Consider a concave mirror and a convex lens (refractive index 1.5) of ...

    Text Solution

    |

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

    Text Solution

    |

  4. A monochromatic beam of light is incident at 60^@ on one face of an eq...

    Text Solution

    |

  5. Light guidance in an optical fibre can be understood by considering a ...

    Text Solution

    |

  6. Light guidance in an optical fibre can be understood by considering a ...

    Text Solution

    |

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

    Text Solution

    |

  8. A plano-covex lens is made of a material of refractive index n. When a...

    Text Solution

    |

  9. A transparent slab of thickness d has a refractive index n(z) that inc...

    Text Solution

    |

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

    Text Solution

    |

  11. The diameter of a plano convex lens is 6 cm and thickness at the centr...

    Text Solution

    |

  12. For an isosceles prism of angle A and refractive index mu it is found ...

    Text Solution

    |

  13. A monochromatic light is travelling in a medium of refractive index n ...

    Text Solution

    |

  14. Sunlight of intensity 1.3kW m^(–2) is incident normally on a thin conv...

    Text Solution

    |

  15. A wire is bent in the shape of a right angled triangle and is placed i...

    Text Solution

    |

  16. Consider two palne convex lanse of same radius of curvature and refrec...

    Text Solution

    |

  17. A planar structure of length L and width W is made of two different op...

    Text Solution

    |

  18. Three glass cylinders of equal height H = 30 cm and same refractive in...

    Text Solution

    |

  19. A prism is shown in the figure with prism angle 75^(@) and refractive ...

    Text Solution

    |

  20. An optical bench has 1.5 m long scale having four equal divisions in e...

    Text Solution

    |