Home
Class 10
PHYSICS
By convention , the power of a convex le...

By convention , the power of a convex lens is taken as ………… whereas the power of a concave lens is taken as …………… .

Text Solution

Verified by Experts

positive negative
Promotional Banner

Topper's Solved these Questions

  • OPTICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (III. True or False . If false correct it.)|10 Videos

  • OPTICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (IV. Match the following)|1 Videos

  • OPTICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (I. Choose the correct answer)|20 Videos

  • NUCLEAR PHYSICS

    FULL MARKS|Exercise Additional Questions (IX. Additional HOT Questions)|4 Videos

  • SAMPLE PAPER - 1

    FULL MARKS|Exercise PART - IV|6 Videos

Similar Questions

Explore conceptually related problems

The power of convex lens is _________.

The power of concave lens is __________.

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

The focal length of a convex lens is 20 cm. What is the power?

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

By convention, the clockwise moments are taken as ………………………………. and the anticlockwise moments are taken as ……………………………….

FULL MARKS-OPTICS-ADDITIONAL QUESTIONS (II. Fill in the blanks)
  1. The interacting particles of the medium is called as .

    Text Solution

    |

  2. When white light pass through transparent medium, it is split into col...

    Text Solution

    |

  3. The speed of light in a medium is high if the refractive index of the...

    Text Solution

    |

  4. The spectral lines which are having frequences other than the incident...

    Text Solution

    |

  5. ……… lenses are used to correct the defect of vision called hypermetero...

    Text Solution

    |

  6. lenses are used as eye lens of 'Galilean Telescope'

    Text Solution

    |

  7. By convention , the power of a convex lens is taken as ………… whereas th...

    Text Solution

    |

  8. The diameter of eye ball in our eye is .

    Text Solution

    |

  9. ……………. Is achieved by changing the focal length of the lens with the h...

    Text Solution

    |

  10. is the coloured portion of the eye.

    Text Solution

    |

  11. …………… is used to observe parts of flower , insects and finger prints i...

    Text Solution

    |

  12. A microscope works based on the principle of vernier.

    Text Solution

    |

  13. An …………. Telescope is used to view heavenly bodies like strars , plane...

    Text Solution

    |

  14. is an optical instrument used to see distant objects.

    Text Solution

    |

  15. ……….. Is the most sensitive part of human eye.

    Text Solution

    |

  16. A convex lens is ……… in the miiddle than at edges

    Text Solution

    |

  17. ……. Lens produces mostly real images.

    Text Solution

    |

  18. Unit of power is .

    Text Solution

    |

  19. The amount of scattering of light is inversely proportional to the po...

    Text Solution

    |

  20. The refractive index of a medium is dependent on the .

    Text Solution

    |