Home
Class 12
PHYSICS
P is a point on the axis of a concave mi...

P is a point on the axis of a concave mirror. The image of P, formed by the mirror, coincides with P. A rectangular glass slab of thickness t and refractive index `mu` is now introduced between P and the mirror. For the image of P to coincide with P again, the mirror must be moved

A

towards `P` by `(mu-1)t`

B

away from `P` by `(mu-1)t`

C

towares `P` by `t(1-1//mu)`

D

away from `P` by `(1-1//mu)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOTION OF CHARGED PARTICLES

    D MUKHERJEE|Exercise All Questions|48 Videos

  • PRACTICE WORKSHEET 1

    D MUKHERJEE|Exercise Matrix-Matching Type|1 Videos

Similar Questions

Explore conceptually related problems

A point object is placed in front of a concave mirror. And its image is found to coincide with its own position. Now a glass slab of thickness 15 cm and refractive index 1.5 is placed in between object and the mirror. In order to form image again at the location of object, it is required to move the object

A converging lens forms a real image I on its optic axis. A rectangular galss slab of refractive index mu and thickness t is introduced between the lens and I . I will move

An object is placed 21 cm in front of a concave mirror of radius of curvature 10cm. A glass slabe of thickness 3cm and refractive index 1.5 is then placed close to the irror in the space between the object and the mirror. The distance of the near surface of the slabe from the mirror is 1cm. The final image from the mirror will be formed at

The image of an object kept at a distance of 30 cm in front of a concave mirror is found to coincide with itself. If a glass slab (mu=1.5) of thickness 3 cm is introduced between the mirror and the object, then a. Identify, in which direction the mirror should be displaced so that the final image may again coincide with the object itself. b. Find the magnitude of displacement.

An object is held in front of a concave mirror between f and C . The image formed is.

When an object is held between pole and focus of a concave mirror, the image formed is.

An object P is focussed by a microscope M. A glass slab of thickness 2'1 cm is introduced between P and M. If the refractive index of the slab is P5, by what distance should the microscope be shifted to focus the object again ?

A glass slab of thickness 3cm and refractive index 1.5 is placed in front of a concave mirror of focal length 20cm. Where should a poing object be placed if it is to image on to itself?

A concave mirror always forms a real image. (T/F)

D MUKHERJEE-OPTICS-All Questions
  1. A plane mirror is placed at the bottom of the tank containing a liquid...

    Text Solution

    |

  2. P is a point on the axis of a concave mirror. The image of P, formed b...

    Text Solution

    |

  3. A converging lens forms a real image I on its optic axis. A rectangula...

    Text Solution

    |

  4. A ray of light travels from an optically denser to rarer medium. The c...

    Text Solution

    |

  5. The light reflected by a plane mirrorr may form a real image

    Text Solution

    |

  6. A transparent sphere of radius R and refractie index mu is kept in air...

    Text Solution

    |

  7. A spherical surface of radius of curvature R separates air (refractive...

    Text Solution

    |

  8. A thin lens of refractive index 1.5 has focal length of 15 cm in air. ...

    Text Solution

    |

  9. A double convex lens, lens made of a material of refractive index mu(1...

    Text Solution

    |

  10. A convex lens of focal length 40cm is in contact with a concave lens ...

    Text Solution

    |

  11. A short linear object of length b lies along the axis of a concave mir...

    Text Solution

    |

  12. A ray of light is incident normally normallyh on one of the faces of a...

    Text Solution

    |

  13. When a ray of light is incident normally on one refracting surface of ...

    Text Solution

    |

  14. A thin prism P(1) with angle 4degree and made from glass of refractive...

    Text Solution

    |

  15. An astronomical telescope has an angular magnification of magnitude 5 ...

    Text Solution

    |

  16. An astronomical telescope in normal adjustment receives light from a d...

    Text Solution

    |

  17. In an astronomical telescope in normal adjustment a straight black lin...

    Text Solution

    |

  18. If epsi(0) and mu(0) are respectively, the electric permittivity and t...

    Text Solution

    |

  19. Light of wavelength lambda in air enters a medium of refractive index ...

    Text Solution

    |

  20. Two coherent monochromatic light beams of intensities I and 4I are sup...

    Text Solution

    |