Home
Class 10
PHYSICS
Observe the diagram which shows the path...

Observe the diagram which shows the path of an incident ray through an optical plane LL' of a lens . The focal length of the lens is 20 cm .

This type of lens can be used :

A

to correct hypermetropia

B

to correct myopia

C

to diverge light .

D

in the front door peepholes.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MACHINES

    ICSE|Exercise EXERCISE-3(B) NUMERICALS|11 Videos

  • QUESTION PAPER-2018

    ICSE|Exercise SECTION-II|42 Videos

Similar Questions

Explore conceptually related problems

A focal length of a lens 10cm. What is power of a lens in dipotre?

Find the focal length of a lens of power - 2.0 D . What type of lens is this ?

See below the diagram. Calculate the focal length of cancave lens with the help of above ray diagram: The focal length of convexlens is 20 cm.

What is the optical power in dioptre of a concave lens of focal length 50 cm?

A source of light is located at double focal length from a convergent lens. The focal length of the lens is f=30cm. At what distance from the lens should a flat mirror be placed, so that the rays reflected from the mirror are parallel after passing through the lens for the second time?

A pin of length 2.0 cm lies along the principal axis of a converging lens, the centre being at a distance of 11 cm from the lens. The focal length of the lens is 6 cm. Find the size of the image.

If the focal length of the lens is 20 cm, find the distance of the image from the lens in the following figure?

The dispersive power of the material of a lens is 0.04 and the focal length of the lens is 10cm . Find the difference in the focal length (in mm) of the lens for violet and red colour.

The figure shows and equiconvex lens of focal length f. It the lens is cut along PQ, the focal length of each half will be

ICSE-QUESTION PAPER 2022 TERM 1-MULTIPLE CHOICE QUESTIONS
  1. The wavelength range of white light is :

    Text Solution

    |

  2. Observe the diagram which shows the path of an incident ray through an...

    Text Solution

    |

  3. Observe the diagram which shows the path of an incident ray through an...

    Text Solution

    |

  4. Observe the diagram which shows the path of an incident ray through an...

    Text Solution

    |

  5. Observe the diagram which shows the path of an incident ray through an...

    Text Solution

    |

  6. Write the relationship between the SI and CGS unit of moment of force.

    Text Solution

    |

  7. A coolie raises a load upwards against the force of gravity then the ...

    Text Solution

    |

  8. The energy change during photosynthesis in plants is :

    Text Solution

    |

  9. The diagram below shows the balanced position of a meter scale ...

    Text Solution

    |

  10. A stone bed at the end of a string is whirled by hand in a horizontal ...

    Text Solution

    |

  11. A stone bed at the end of a string is whirled by hand in a horizontal ...

    Text Solution

    |

  12. A body of mass 200 g falls freely from a height of 15 m [g = 10 ms^(...

    Text Solution

    |

  13. A body of mass 200 g falls freely from a height of 15 m [g = 10 ms^(...

    Text Solution

    |

  14. A body of mass 200 g falls freely from a height of 15 m [g = 10 ms^(...

    Text Solution

    |

  15. A body of mass 200 g falls freely from a height of 15 m [g = 10 ms^(...

    Text Solution

    |

  16. A woman draws water from a well using a fixed pulley . The mass of the...

    Text Solution

    |

  17. A single fixed pulley is used because :

    Text Solution

    |

  18. In the diagram shown below , the velocity ratio of the arrangement is

    Text Solution

    |

  19. Which one of the following is the correct mathematical relation ?

    Text Solution

    |

  20. Select a correct option with respect to echo depth sounding :

    Text Solution

    |