Home
Class 12
PHYSICS
Refractive index of a glass cube is sqrt...


Refractive index of a glass cube is `sqrt(2)`. A ray of light is incident on left face of the cube as shown. Right face of a glass cube is silvered. If the total deviation suffered by the ray when it comes out of the glass cube is `45n` (in degree) then find `n`:

Text Solution

Verified by Experts

The correct Answer is:
D

Applying snell's law at first surface
`1sin45^(@)=sqrt(2)xxsintheta`
`theta=30^(@)`
Since angle of incidence on horizontal face is more than `45^(@)` so the ray will suffer TIR on horizontal face as shown in the figure. so emergent ray will be parallel to incident ray.
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE|Exercise PT-01|30 Videos

  • TEST PAPERS

    RESONANCE|Exercise Pt-02|30 Videos

  • TEST PAPERS

    RESONANCE|Exercise PART - II PHYSICS|107 Videos

  • SIMPLE HARMONIC MOTION

    RESONANCE|Exercise Advanced Level Problems|13 Videos

  • TEST SERIES

    RESONANCE|Exercise PHYSICS|127 Videos

Similar Questions

Explore conceptually related problems

One side of a glass slab is silvered as shown in the figure. A ray of light is incident on the other side at angle of incidence 45^@. Refractive index of glass is given as sqrt2 . The deflection suffered by the ray when it comes out of the slab is

A ray of light is incident on the surface of plate of glass of refractive index 1.5 at the polarising angle. The angle of refraction of the ray will be

One side of a glass slab is silvered as shown. A ray of light is incident on the other side at angle of incidence i=45^(@) . Refractive index of glass is given as 1.5 . The deviation of the ray of light from its initial path when it comes out of the slab is

A light ray is incident on a glass sphere at an angle of incidence 60^(@) as shown. Find the angles r, r', e and the total deviation after two refractions.

One side of a glass slab is silvered as shown. A ray of light is incident on the other side at angle of incidence i = 45^(@) . Refractive index of glass a is given as 1.5. The diviation of the ray of light from its initial path when it comes out of the slab is

A light ray is incident on a glass sphere at an angle of incidence 60^(@) as shown. Find the angles r, f^(1) , e and the total deviation after two refractions.

A ray of light is incident normally on one of the faces of a prism of apex angle 30 degree and refractive index sqrt2. The angle of deviation of the ray is…degrees.

A ray of light is incident on a glass slab at an angle of 45^(@) . If refractive index of glass be 1.6, what is the angle of refraction ?

A rectengular glass slab ABCD of refractive index n_1 is immersed in water of refractive index n_2(n_1gtn_2) . A ray of light is incident at the surface AB of the slab as shown. The maximum value of the angle of incidence alpha_max such that the ray comes out only from the other surface CD is given by

RESONANCE-TEST PAPERS-Physics
  1. An ideal gas undergoes a cyclic process, in which one process is isoch...

    Text Solution

    |

  2. Flint glass prism is joined by a crown glas prism to produce dispersio...

    Text Solution

    |

  3. Refractive index of a glass cube is sqrt(2). A ray of light is inciden...

    Text Solution

    |

  4. If the distance between two images formed by upper and lower part of t...

    Text Solution

    |

  5. A uniform rod of mass M and lengthL is suspended in vertical position ...

    Text Solution

    |

  6. Consider the three ropes of same length and same linear density as (sh...

    Text Solution

    |

  7. A flexible metallic wire at temperature 0^(@)C has young's modulus Y, ...

    Text Solution

    |

  8. An ideal gas can be expanded form an initial state to a certain volume...

    Text Solution

    |

  9. Choose the correct option(s). Assume all lenses in air.

    Text Solution

    |

  10. a cavity of radius R is taken out from a uniformly charged solid spher...

    Text Solution

    |

  11. An ideal gas taken from state A(P,V) to the state B(P//2,2V) along a s...

    Text Solution

    |

  12. A bimetallic strip is formed out of two identical strips one of copper...

    Text Solution

    |

  13. A metallic circular disc having a circular hole at its centre rotates ...

    Text Solution

    |

  14. Two point charges (q(1) and q(2)) are placed on x-axis, figure shows g...

    Text Solution

    |

  15. A and B are two points on the path of a particle executing SHM in a st...

    Text Solution

    |

  16. A and B are two points on the path of a particle executing SHM in a st...

    Text Solution

    |

  17. Three particles having charges q,q and 2q have masses m, 2m and 5 m re...

    Text Solution

    |

  18. Three particles having charges q,q and 2q have masses m, 2m and 5 m re...

    Text Solution

    |

  19. A monoatomic ideal gas of two moles is taken through a cyclic process ...

    Text Solution

    |

  20. A monoatomic ideal gas of two moles is taken through a cyclic process ...

    Text Solution

    |