Home
Class 12
PHYSICS
An object is placed at a distance of 20 ...

An object is placed at a distance of 20 cm from the pole of a concave mirror of focal length 10 cm. The distance of the image formed is

A

`+20cm`

B

`+10cm`

C

`-20cm`

D

`-10cm`

Text Solution

Verified by Experts

The correct Answer is:
C
`1/f=1/v+1/u`
`1/(-10)=1/v-1/20`
`1/v=1/20-1/10=(10-20)/200`
`v=-20cm`
Promotional Banner

Topper's Solved these Questions

  • II PUC PHYSICS SUPPLEMENTARY EXAM QUESTION PAPER JULY - 2017

    SUNSTAR PUBLICATION|Exercise PART-D ( Vi. Answer any three of the following questions:)|5 Videos

  • K-CET-PHYSICS - 2016

    SUNSTAR PUBLICATION|Exercise MCQs|59 Videos

Similar Questions

Explore conceptually related problems

An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.

An object is placed at a distance of 10 cm from a convex mirrior of focal length 15 cm. Find the position and nature of the image.

The magnification produced by a plane mirror is +1. What does this means. An object is placed at a distance of 10cm from a convex mirror of focal length 15cm .Find the position and nature of the image.

SUNSTAR PUBLICATION-K - CET - PHYSICS - 2018-MCQs
  1. The strength of the Earth's magnetic field is

    Text Solution

    |

  2. A jet plane having a wing - span of 25 m is travelling horizontally to...

    Text Solution

    |

  3. Which of the following represents the variation of inductive reactance...

    Text Solution

    |

  4. The magnetic flux linked with a coil varies as phi=3t^(2)+4t+9. Find t...

    Text Solution

    |

  5. A 100 W bulb is connected to an AC source of 220 V, 50 HZ . Then the c...

    Text Solution

    |

  6. In the series LCR circuit , the power dissipation is through

    Text Solution

    |

  7. In Karnatake , the normal domestic power supply AC is 220 V, 50 Hz . ...

    Text Solution

    |

  8. A step - up transformer operates on a 230 V line and a load current of...

    Text Solution

    |

  9. The number of photons falling per second on a completely darkened plat...

    Text Solution

    |

  10. An objected is placed at the principle focus of a convex mirror. The i...

    Text Solution

    |

  11. An object is placed at a distance of 20 cm from the pole of a concave ...

    Text Solution

    |

  12. A candle placed 25 cm from a lens forms an image on a screen placed 75...

    Text Solution

    |

  13. A plane wavefront of wavelength lamda is incident on a single slit of ...

    Text Solution

    |

  14. How will the diffraction pattern of single slit change when yellow lig...

    Text Solution

    |

  15. In Young's double slit experiment , two wavelengths lamda1 = 780 nm a...

    Text Solution

    |

  16. In Young.s double slit experiment, slits are separated by 2 mm and the...

    Text Solution

    |

  17. The maximum kinetic energy of emitted photoelectrons depends on

    Text Solution

    |

  18. A proton and an alpha particle are accelerated through the same potent...

    Text Solution

    |

  19. The total energy of an electron revolving in the second orbit of hydro...

    Text Solution

    |

  20. The period of revolution of an electron in the ground state of hydroge...

    Text Solution

    |