Home
Class 10
PHYSICS
The power of a convex lens of focal leng...

The power of a convex lens of focal length 50 cm is …………….

A

2 D

B

0.2 D

C

S0 D

D

0.5 D

Text Solution

Verified by Experts

2 D,
Promotional Banner

Topper's Solved these Questions

  • LENSES

    CHETAN PUBLICATION|Exercise Solve the following|10 Videos

  • LENSES

    CHETAN PUBLICATION|Exercise Define the following|19 Videos

  • LENSES

    CHETAN PUBLICATION|Exercise Answer the following in one sentence|12 Videos

  • HEAT

    CHETAN PUBLICATION|Exercise ASSIGNMENT - 5 (Answer the following: (Any 1))|3 Videos

  • MODEL ACTIVITY SHEET

    CHETAN PUBLICATION|Exercise SOLVE THE FOLLOWING QUESTIONS : (ANY 1)|9 Videos

Similar Questions

Explore conceptually related problems

The power of convex lens with focal length 40 cm is …………

The magnifying power of a convex lens of focal length 10 cm when the image is formed at the near point is:

What is the focal length of a convex lens of focal length 30 cm in contact with a concave lens of focal length 20 cm? is the system a converging or a diverging lens ? Ignore thickness of the lenses.

An object is placed 40 cm from a convex lens of focal length 30 cm. If a concave lens of focal length 50 cm is introduced between the convex lens and the image formed such that it is 20 cm from the convex lens, find the change in the position of the image.

An object is placed in front of a convex lens of a focal length 10 cm . What is the nature of the image formed if the object distance is 15 cm ? Given Object distance , mu= -15 cm Focal length, f=10 cm To find : Nature of the image = ?

A child has near point at 10 cm. What is the maximum angular magnification the child can have with a convex lens of focal length 10 cm?

A concave lens is kept in contact with a convex lens of focal length 20 cm. The combination behaves as a convex lens of focal length 50 cm . Find the power of concave lens.

A beam of light converges to a point P , A lens is placed in the path of the convergent beams 12 cm from P. At what point does the beam converge if the lens is a. A convex lens of focal length 20 cm. b. A concave lens of focal length 16 cm ?

CHETAN PUBLICATION-LENSES-Choose and write the correct option:
  1. What is the distance of distinct vision?

    Text Solution

    |

  2. The power of a convex lens of focal length 50 cm is …………….

    Text Solution

    |

  3. The focal length of a concave lens with power -4D is ……………….

    Text Solution

    |

  4. If the incident ray passes through focus, then the reflected ray is ……...

    Text Solution

    |

  5. The image is formed on the ………..of the human eye.

    Text Solution

    |

  6. If an object is placed between F(1)" and " 2F(1) of a convex lens, the...

    Text Solution

    |

  7. When a person is myopia, he/she can clearly see .

    Text Solution

    |

  8. Hypermeteropia is corrected by lens.

    Text Solution

    |

  9. Convex lens of power +5" D " and concave lens with power -3" D "are pl...

    Text Solution

    |

  10. Simple microscope consists of

    Text Solution

    |

  11. The perception of dim light is concerned with …………….. cells.

    Text Solution

    |

  12. Impression of an image lasts on the retina for1/10 the of a second.

    Text Solution

    |

  13. The second focal point is located at ………………… of a human eye.

    Text Solution

    |

  14. For a Convex lens, if the incident ray is parallel to the principle ax...

    Text Solution

    |

  15. Inside water, an air bubble behaves ……………….

    Text Solution

    |

  16. To obtain an image of the same size as the object with the help of a c...

    Text Solution

    |

  17. At what distance should a watchmaker hold his lens from the watch?

    Text Solution

    |

  18. When we enter a dark room, pupil of our eye ………………. .

    Text Solution

    |