Home
Class 10
PHYSICS
If the focal length of a spherical mirro...

If the focal length of a spherical mirror is 12.5 less cm, its radius of curvature will be :

A

25 cm

B

15 cm

C

20 cm

D

35 cm

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • REFLECTION OF LIGHT

    LAKHMIR SINGH & MANJIT KAUR|Exercise Multiple Choice Questions (MCQs)|1 Videos

  • REFLECTION OF LIGHT

    LAKHMIR SINGH & MANJIT KAUR|Exercise Very Short Answer Type Questions|1 Videos

  • REFLECTION OF LIGHT

    LAKHMIR SINGH & MANJIT KAUR|Exercise Very Short Answer Type Questions|1 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    LAKHMIR SINGH & MANJIT KAUR|Exercise NCERT BOOK|2 Videos

  • REFRACTION OF LIGHT

    LAKHMIR SINGH & MANJIT KAUR|Exercise VERY SHORT ANSWER TYPE QUESTIONS|1 Videos

Similar Questions

Explore conceptually related problems

The focal length of spherical mirror is

Define the focal length of a spherical mirror.

If the focal length of a convex mirror is 25 cm, what is its radius of curvature ?

If we say that the focal length of a spherical mirror is n times its radius of curvature, then n must be

The focal length of a convex mirror is 20 cm its radius of curvature will be

Focal length of a convex mirror is 50 cm . What is its radius of curvature?

The focal length of a convex mirrorr is 20cm its radius of curvature will be

The focal length of a spherical mirror is given by f=R/2 , where R is radius of curvature of the mirror. For a given spherical mirror made of steel the focal length is f = 24.0 cm. Find its new focal length if temperature increases by 50^(@)C . Given = alpha_("Steel")=1.2 xx 10^(- 5).^(@)C^(-1)

Prove that focal length of a spherical mirror is equal to half the radius of its curvature.

LAKHMIR SINGH & MANJIT KAUR-REFLECTION OF LIGHT -Exercise
  1. If R is the radius of curvature of a spherical mirror and f is its len...

    Text Solution

    |

  2. The focal length of a spherical mirror of radius of curvature 30 cm is...

    Text Solution

    |

  3. If the focal length of a spherical mirror is 12.5 less cm, its radius ...

    Text Solution

    |

  4. A communications satellite in orbit sends a parallel beam of signals ...

    Text Solution

    |

  5. When a spherical mirror is held towards the sun and its sharp image is...

    Text Solution

    |

  6. For what position of an object, a concave mirror forms a real image e...

    Text Solution

    |

  7. Where should an object be placed in front of the mirror so as to obtai...

    Text Solution

    |

  8. Where should an object be held so that a concave mirror forms a real, ...

    Text Solution

    |

  9. An object is placed at the focus of a concave lens. Where will be imag...

    Text Solution

    |

  10. Where is the image formed when an object is at large distance from a c...

    Text Solution

    |

  11. For what position of an object, a real and diminished image is formed ...

    Text Solution

    |

  12. Copy this figure in your answer book and show the direction of the lig...

    Text Solution

    |

  13. Draw Fig. in your answer book and show the formation of image with the...

    Text Solution

    |

  14. Draw Fig. in your answer book and show the formation of image with the...

    Text Solution

    |

  15. Which type of mirror could be used as a dentist's mirror ?

    Text Solution

    |

  16. The mirror used for the head light of a car is

    Text Solution

    |

  17. Explain why, a ray of light passing through the centre of curvature of...

    Text Solution

    |

  18. What is the minimum number of rays required for locating the image for...

    Text Solution

    |

  19. With the help of a ray diagram, determine the position, nature and siz...

    Text Solution

    |

  20. Describe with the help of a diagram, the nature, size and psition of t...

    Text Solution

    |