Home
Class 12
PHYSICS
A ray of light strikes a plane mirror at...

A ray of light strikes a plane mirror at an angle of incidence `45^@` as shown in Figure . After reflection,l the ray passes through a prism of refractive indes 1.5 whos apex angle is `4^@`. Through what angle must the mirror be rotated it total deviation of the ray be `90^@` ?

A

`1^(@)` clockwise

B

`1^(@)` anticlockwise

C

`2^(@)` clockwise

D

`2^(@)` anticlockwise

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE II LEVEL -II (ADVANCED) MORE THAN ONE CORRECT TYPE QUESTIONS)|7 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE II LEVEL -II (ADVANCED) LINKED COMPREHENSION TYPE QUESTIONS)|9 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE II LEVEL -I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)|17 Videos

  • ELEMENTS OF VECTORS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

  • LAWS OF MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|106 Videos

Similar Questions

Explore conceptually related problems

When a ray of light strikes a plane mirror along the normal, the angle of incidence is :

A ray of light falls normally on a plane mirror. What is the angle of incidence ?

A ray of light is incident on a plane mirror at an angle of incidence of 30^@ . The deviation produced by the mirror is

A light ray is incident normally on a plane mirror. What is its angle of incidence?

A light ray is incident normally on a plane mirror. What is the angle of incidence?

A ray of light is incident at an angle of 30^(@) with the plane of a plane mirror. Find the angle of reflection.

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

a ray of light is incident on a plane miror at an angle of 30^(@) in anti-clockwise direction. Find the angle and sense of rotation of the reflected ray.

A horizontal ray of light passes through a prism of index 1.50 and apex angle 4^(@) and then strikes a vertical mirror , as shown in the figure. Through what angle must the mirror be rotated if after reflection the ray is to be horizontal?

A ray of light strikes a transparent rectangular slab of refractive index sqrt(2) at an angle of incidence of 45^(@) . The angle betweent the reflected and refracted rays is

AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE II LEVEL -II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. The apparent depth of an object O from AB is

    Text Solution

    |

  2. A point source S is placed at the bottom of different layers as shown ...

    Text Solution

    |

  3. A person looking through a telescope focuses lens at a point on the ed...

    Text Solution

    |

  4. x-y plane separates two media, zge0 contains a medium of refractive i...

    Text Solution

    |

  5. A body weighs w Newton on the surface of the earth. Its weight at a he...

    Text Solution

    |

  6. The graph between sine of angle of refraction (sin r) in medium 2 and ...

    Text Solution

    |

  7. A cubic container is filled with a liquid whose refractive index incre...

    Text Solution

    |

  8. Four similar prisms of angle of prism are arranged. Which of the follo...

    Text Solution

    |

  9. A light ray is incident upon a prism in minimum deviation position and...

    Text Solution

    |

  10. A ray of light strikes a plane mirror at an angle of incidence 45^@ as...

    Text Solution

    |

  11. The xz plane separates two media A and B with refractive indices mu(1)...

    Text Solution

    |

  12. A microscope is focussed on a point object, and then its objective is ...

    Text Solution

    |

  13. It is found that electromagnetic signals sent inside glass sphere from...

    Text Solution

    |

  14. A light ray is incident on a transparent slab of refractive index mu=s...

    Text Solution

    |

  15. The time required for the light to go from A to B, when a ray of lilgh...

    Text Solution

    |

  16. The apparent depth of water in cylindrical water tank of diameter 2R c...

    Text Solution

    |

  17. A ray of light travels from a medium of refractive index mu to air. It...

    Text Solution

    |

  18. A man of height 1.47 m stands on a straight road on a hot day. The ver...

    Text Solution

    |

  19. A glass slab of thickness 3 cm and refractive index 3/2 is placed on i...

    Text Solution

    |

  20. Solar rays are incident at 45^(@) on the surface of water (mu=4//3). T...

    Text Solution

    |