Home
Class 12
PHYSICS
Which mirror is to be used to obtain a p...

Which mirror is to be used to obtain a parallel beam of light from a small lamp?

A

plane mirror

B

convex mirror

C

concave mirror

D

any one of the above.

Text Solution

Verified by Experts

The correct Answer is:
c
If we place small lamp at the focus of concave mirror we will get parallel beam of light.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2003

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

  • KARNATAKA CET 2006

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

Which of the following can make parallel beam of light when light from a point source is incident on it ?

A convex lens A of focal length 20 cm and a concave lens B of focal length 5 cm are kept along the same axis with a distance d between them. What is the value of d if a parallel beam of light incident on A leaves B as a parallel beam ?

The nature of the wave front associated with a parallel beam of light is

Which of the following produces highly coherent beam of light ?

Lens X has focal length 20 cm and lens Y has focal length 40 cm. Which lens would you select to obtain a more convergent beam of light ?

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2005-PHYSICS
  1. In the given circuit, the voltmeter  records 5 volts. The resistance o...

    Text Solution

    |

  2. The wavelength of the radiation emitted by a body depends upon

    Text Solution

    |

  3. Which mirror is to be used to obtain a parallel beam of light from a s...

    Text Solution

    |

  4. An ideal monoatomic gas is taken around PT 2P, 2P, 2V the cycle ABCDA ...

    Text Solution

    |

  5. Which of the following is a wrong statement?

    Text Solution

    |

  6. Identify the wrong description of the above figures

    Text Solution

    |

  7. An electric field of 1500 V/m and a magnetic field of 0.40 weber/metre...

    Text Solution

    |

  8. In an ammeter 10% of main current is passing through the galvanometer....

    Text Solution

    |

  9. Among the following properties describing diamagnetism identify the pr...

    Text Solution

    |

  10. The induction coil works on the principle of

    Text Solution

    |

  11. The square root of the product of inductance and capacitance has the d...

    Text Solution

    |

  12. When a body falls in air, the resistance of air depends to a great ext...

    Text Solution

    |

  13. The adjacent figure is the part of a horizontally stretched net. Secti...

    Text Solution

    |

  14. Out of the following four dimensional quantities, which one qualifies ...

    Text Solution

    |

  15. The relationship between the force Fand position x of a body is as sho...

    Text Solution

    |

  16. From the top of a tower of two stones, whose masses are in the ratio 1...

    Text Solution

    |

  17. Infrared radiation was discovered in 1800 by

    Text Solution

    |

  18. A particle on the trough of a wave at any instant will come to the mea...

    Text Solution

    |

  19. The disc of a siren containing 60 holes rotates at a constant speed of...

    Text Solution

    |

  20. The ratio of velocity of sound in hydrogen and oxygen at STP is

    Text Solution

    |