Home
Class 12
PHYSICS
A person wants a real image of his own, ...

A person wants a real image of his own, 3 times enlarged. Where should he stand in front of a concave mirror of radius of curvature of 30cm.

A

`10` cm

B

`30` cm

C

`90` cm

D

`20` cm

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • OPTICS

    MTG GUIDE|Exercise AIPMT/NEET|55 Videos
  • OPTICS

    MTG GUIDE|Exercise Topicwise Practice Questions|200 Videos
  • MAGNETIC EFFECTS OF CURRENT AND MAGNETISM

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|48 Videos
MTG GUIDE-OPTICS-Check your NEET vitals
  1. A person wants a real image of his own, 3 times enlarged. Where should...

    Text Solution

    |

  2. A metal plate is lying at the bottom of a tank full of a transparent l...

    Text Solution

    |

  3. A ray of light when falls on a liquid A-air interface at angle 45^(@),...

    Text Solution

    |

  4. A ray of light falls on a glass slab making an angle of 45^(@) with no...

    Text Solution

    |

  5. Figure shows two glass slabs placed one above the other in air. Refrac...

    Text Solution

    |

  6. Two thin convex lenses of focal length 20 cm and 25 cm are placed at a...

    Text Solution

    |

  7. When a ray of light falls on a prism of angle 48^(@) , it suffers mini...

    Text Solution

    |

  8. Which of the following colours suffers maximum deviation in a prism

    Text Solution

    |

  9. A ray of light incident on a prism of angle 60^(@), does not emerge ou...

    Text Solution

    |

  10. In going from a rarer to a denser medium, light loses some speed. What...

    Text Solution

    |

  11. Laser light of wavelength 630 mm incident on a pair of slits produces ...

    Text Solution

    |

  12. In Young's double slit experiment, light of wavelength 6000Å is used t...

    Text Solution

    |

  13. If epsilon0 and mu0 are respectively the electric permittivity and the...

    Text Solution

    |

  14. Out of the following, which can be used as coherent sources required t...

    Text Solution

    |

  15. किसी माध्यम के लिए ध्रुवण -कोण 60^(@) है । उसके लिए क्रांतिक कोण कितना...

    Text Solution

    |

  16. A beam of light travelling in water falls on a glass plate immersed in...

    Text Solution

    |

  17. Which of the following can not be polarised ?

    Text Solution

    |

  18. If a concave mirror is held in water, then its focal length

    Text Solution

    |

  19. If a convex lens is immersed in water, then its focal length

    Text Solution

    |

  20. A converging lens is used to form an image on a screen. When the upper...

    Text Solution

    |