Home
Class 12
PHYSICS
A plano convex lens of unknown material ...

A plano convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the

A

Radius of curvature of the curved surface

B

Aperture of the lens

C

Refractive index of the material

D

Focal length of the lens

Text Solution

Verified by Experts

The correct Answer is:
A
Spherometer is a device used to measure the radius curvature of the curved surface.
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    PHYSICS WALLAH|Exercise LEVEL - 2|30 Videos

  • OSCILLATIONS

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |5 Videos

  • SEMICONDUCTOR ELECTRONICS

    PHYSICS WALLAH|Exercise NEET PAST 5 YEAR QUESTION |23 Videos

Similar Questions

Explore conceptually related problems

A plano - convex lens is made of flint glass. Its focal length is

Find the unknown length in the given figure.

A plano-convex lens is made of refractive index of 1.6. The focal length of the lens is

Briefly explain how an unknown force can be measured with the help of a coiled spring.

The focal length of a convex lens is

The radius of curvature of convex surface of piano convex lens is 10 cm and its focal length is 30 cm, then the refractive index of the material of the lens is

PHYSICS WALLAH-RAY OPTICS AND OPTICAL INSTRUMENTS -NEET PAST 5 YEARS QUESTIONS
  1. Assume that light of wavelength 600 nm is coming from a star The limit...

    Text Solution

    |

  2. Light with an average flux of 20 W/cm^2 falls on a non-reflecting surf...

    Text Solution

    |

  3. A ray is incident at an angle of incidence i on one surfcae of a small...

    Text Solution

    |

  4. Three stars A, B, C have surface temperatures TA , TB ,TC respectively...

    Text Solution

    |

  5. An object is placed on the principal axis of a concave mirror at a dis...

    Text Solution

    |

  6. If the critical angle for total internal reflection from a medium to v...

    Text Solution

    |

  7. A plano convex lens of unknown material and unknown focal length is gi...

    Text Solution

    |

  8. The power of a biconvex lens is 10 dioptre and the radius of curvature...

    Text Solution

    |

  9. Pick the wrong answer in the context with rainbow.

    Text Solution

    |

  10. Two similar thin equi-convex lenses, of focal f each, are kept coaxial...

    Text Solution

    |

  11. In total internal reflection when the angle of incidence is equal to t...

    Text Solution

    |

  12. The refractive index of the material of a prism is sqrt(2) and the ang...

    Text Solution

    |

  13. An object is placed at a distance of 40 cm from a concave mirrorr of f...

    Text Solution

    |

  14. A beam of light from a source L is incident normally on a plane mirror...

    Text Solution

    |

  15. A thin prism having refracting angle 10^(@) is made of glass of refrac...

    Text Solution

    |

  16. If the angle of a prism is 60^@ and angle of minimum derivation is 40...

    Text Solution

    |