Home
Class 10
PHYSICS
a) With the help of a labelled diagram e...

a) With the help of a labelled diagram explain how a convex lens converges a beam of parallel light rays. Mark the principle axis, optical center, principal focus and focal length of the convex lens on the diagram.
b) State whether convex lens has a real focus or a virtual focus.
c) List some things that convex lens and concave mirror have in common.

Promotional Banner

Topper's Solved these Questions

  • REFRACTION OF LIGHT

    LAKHMIR SINGH & MANJIT KAUR|Exercise LONG ANSWER TYPE QUESTIONS|3 Videos

  • REFRACTION OF LIGHT

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

  • REFRACTION 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

  • SOURCES OF ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise NCERT|8 Videos

Similar Questions

Explore conceptually related problems

a) With the help of a labelled diagram, explain how a concave lens diverges a beam of parallel light rays. Mark the princple axis, optical center, principle focus and focal length of the convex lens on the diagram. b) State whether concave lens and convex lens mirror have in common.

a) Explain with the help of a digaram, why the convex lens is also called a converging lens. b) Define principle axis, principle focus and focal length of a convex lens.

Explain with a suitable diagram, how a concave mirror converges a parallele beam of light rays. Mark clearly the pole, focus and centre of curvature of concave mirror in this diagram.

The principal focus of a convex lens is virtual . True/False

Describe with a suitable diagram, how a convex mirror diverges a parallel beam of light rays. Mark clealy the polw, focus and cente of curvature of convex mirror in this diagram.

a) Explain with the help of a diagram, why the concave lens is also called a diverging lens. b) Define the principle focus of a convex lens.

Which of the two diverges a beam of parallel rays of light : convex lens or concave lens ?

From the ray diagram shown below, calculate the focal length of the other convex lens.

LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
  1. Draw a diagram to show how a converging lens held close to the eye act...

    Text Solution

    |

  2. How would you find the focal length of a convex lens rapidly but appro...

    Text Solution

    |

  3. a) With the help of a labelled diagram explain how a convex lens conve...

    Text Solution

    |

  4. a) With the help of a labelled diagram, explain how a concave lens div...

    Text Solution

    |

  5. Draw ray diagrams to represent the nature, position and relative size ...

    Text Solution

    |

  6. a) An object is placed well outside the principle focus of a convex le...

    Text Solution

    |

  7. a) Explain what is meant by a virtual, magnified image. b) Draw a ra...

    Text Solution

    |

  8. A convex lens a focal length of 10 cm. At which of the following posit...

    Text Solution

    |

  9. Which one of the following materials cannot be used to make a lens ?

    Text Solution

    |

  10. A small bulb is placed at the focal point of a converging lens. When t...

    Text Solution

    |

  11. An illuminated object is placed at a distance of 20 cm from a convergi...

    Text Solution

    |

  12. An object is placed between f and 2f of a convex lens. Which of the fo...

    Text Solution

    |

  13. Given a point source of light, which of the following can produce a pa...

    Text Solution

    |

  14. In order to obtain a real image twice the size of the with a convex le...

    Text Solution

    |

  15. A converging lens is used to produce an image of an object on a screen...

    Text Solution

    |

  16. A convex lens of focal length 8 cm forms a real image of the same size...

    Text Solution

    |

  17. A virtual, erect and magnified image of an object is to be obtained wi...

    Text Solution

    |

  18. A burning candle whose flame is 1.5 cm tall is placed at a certain dis...

    Text Solution

    |

  19. A lens of focal length 12 cm forms an upright image three times the si...

    Text Solution

    |

  20. If an object is placed 21 cm from a converging lens, the image formed ...

    Text Solution

    |