Home
Class 10
PHYSICS
What is a lens ?...

What is a lens ?

Promotional Banner

Topper's Solved these Questions

  • LIGHT : REFLECTION AND REFRACTION

    MBD -HARYANA BOARD|Exercise LONG ANSWER TYPE QUESTIONS|13 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MBD -HARYANA BOARD|Exercise EXAMPLE|74 Videos

Similar Questions

Explore conceptually related problems

Look at the figure and answer the following questions. What is lens B called?

What is focal length of a lens of power 2.5 D ?

What kind of lens is used as a magnifying glass ?

What kind of lens is present in the human eye ?

What is a concave lens ?

MBD -HARYANA BOARD-LIGHT:REFLECTION AND REFRACTION-EXAMPLE
  1. What are cartesian sign conventions used in spherical mirror ? What is...

    Text Solution

    |

  2. A ray of light travelling in glass emerges into air. State whether it ...

    Text Solution

    |

  3. What is a lens ?

    Text Solution

    |

  4. What is the basic difference between reflection and refraction of ligh...

    Text Solution

    |

  5. Define one dioptre of power of a lens.

    Text Solution

    |

  6. The radius of curvature of a concave mirror is 30 cm what is its focal...

    Text Solution

    |

  7. If the radius of curvature of a convex mirror is 40 cm, then its focal...

    Text Solution

    |

  8. A concave mirror produces three times magnified real image of an objec...

    Text Solution

    |

  9. An object is placed at a distance of 10 cm from a convex mirror of foc...

    Text Solution

    |

  10. Light enters from air to diamond with refractive index 2.42 What is th...

    Text Solution

    |

  11. Calculate speed of light in water of refractive index 4//3. Given spee...

    Text Solution

    |

  12. The reflective index of water with respect to air is 4//3 and the refl...

    Text Solution

    |

  13. An object is 2m from a lens which forms an erect image one-fourth (exa...

    Text Solution

    |

  14. A convex lens of focal length 20 cm is placed at a distance of 24 cm f...

    Text Solution

    |

  15. A concave lens has focal length of 15 cm. At what distance should an o...

    Text Solution

    |

  16. A convex lens of power 4 D is placed at a distance of 40 cm from a wal...

    Text Solution

    |

  17. Which mirror has a wider field of view ?

    Text Solution

    |

  18. Define principal axis of a spherical mirror.

    Text Solution

    |

  19. What is concave mirror

    Text Solution

    |

  20. What is convex mirror?

    Text Solution

    |