Home
Class 12
PHYSICS
A simple telescope consisting of an obje...

A simple telescope consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focused on a distant object in such a way that parallel rays emerge from eye lens. If the object subtends an angle of `2^(@)` at the objective, the angular width of the image is (Let `tan theta=theta` assuming `theta` small).

A

`10^(@)`

B

`50^(@)`

C

`24^(@)`

D

`1//60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 3

    KCET PREVIOUS YEAR PAPERS|Exercise (PHYSICS)|60 Videos
  • MODEL TEST PAPER 5

    KCET PREVIOUS YEAR PAPERS|Exercise Physics|60 Videos

Similar Questions

Explore conceptually related problems

A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object in such a way that parallel rays emerge from the eye lens. If the object subtends an angle of 2^@ at the objective, the angular width of the image is :

A small telescope has an objective lens of focal length 144cm and an eyepiece of focal length 6.0cm. What is the magnifying power of the telescope? What is the separation between the objective and the eyepiece?

To form an image twice the size of the object, using a convex lens of focal length 20 cm, the object distance must be

The focal length of objective lens of a telescope is 30 cm and that of its eye lens is 3 cm. It is focussed on a scale 2 metres distant from it. The distance of objective lens from eye lens to see with relaxed eye is

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 4-PHYSICS
  1. The displacement of partcles in a string streched in the x-direction i...

    Text Solution

    |

  2. Two sources of sound are in resonance when

    Text Solution

    |

  3. A transverse wave is described by the equation y= A sin 2 pi (vt - x/l...

    Text Solution

    |

  4. Define the frequency of an Ac.

    Text Solution

    |

  5. A tuning fork of frequency 480 Hz produces 10 beats per second when so...

    Text Solution

    |

  6. A tuning fork of frequency 480 Hz produces 10 beats per second when so...

    Text Solution

    |

  7. The equation of a transverse wave is given by y=20sinpi(0.02x-2t) wher...

    Text Solution

    |

  8. The first diffraction minima due to a single slit diffraction is at th...

    Text Solution

    |

  9. The wavelength of the light of a laser beam can be used as a standard ...

    Text Solution

    |

  10. Polarisation of light proves the -

    Text Solution

    |

  11. An electron microscope is superior to an optical microscope in

    Text Solution

    |

  12. The intensity of illumination at a distances of 5 m from a 200 candela...

    Text Solution

    |

  13. A simple telescope consisting of an objective of focal length 60 cm an...

    Text Solution

    |

  14. Two lenses of power +12 and -2 dioptres are placed in contact. The com...

    Text Solution

    |

  15. A rayt of light passes through an equilateral prism (refrective index ...

    Text Solution

    |

  16. A body cools from 80^(@)C to 70^(@)C in 6 minutes Under the saame exte...

    Text Solution

    |

  17. Explain internal energy as a state function.

    Text Solution

    |

  18. The work done by the string of a simple pendulum during one complete o...

    Text Solution

    |

  19. A stone released with zero velocity from the top of a water, reaches t...

    Text Solution

    |

  20. If c and R denote capacity and resistance the dimensions of CR are :

    Text Solution

    |