Home
Class 12
PHYSICS
A parallel beam of light is incident on ...

A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the les on the other side on its principal axis, the intensity of light

A

Remains constant

B

Continuously increases

C

Continuously decreases

D

First increases then decreases

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS : REFRACTION

    RESNICK AND HALLIDAY|Exercise Practice questions(More than one correct choice type)|14 Videos
  • GEOMETRICAL OPTICS : REFRACTION

    RESNICK AND HALLIDAY|Exercise Practice questions(Linked Comprehension)|2 Videos
  • GEOMETRICAL OPTICS : REFRACTION

    RESNICK AND HALLIDAY|Exercise Problems|44 Videos
  • GEOMETRICAL OPTICS : REFLECTION

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|3 Videos
  • GRAVITATION

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (INTEGER TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

A parallel beam of light is incident on a lens of focal length 10 cm. A parallel slab of refractive index 1.5 and thickness 3 cm is placed on the other side of the lens. Find the distance of the final image from the lens. .

A converging beam of light incident on a lens emerges as a parallel beam. What kind of lens is it?

In the figure shown a converging lens and a diverging lens of focal lengths 20cm and -5cm respectively are separated by a distance such that a paralel beam of light of intensity 100 watt//m^(2) incident on the converging lens comes out as parallel beam from the diverging lens. Find the intensity of the outgoing beam in watt//m^(2)

A parallel beam of light passes parallel to the principal axis and falls on one face of a thin convex lens offocal length f and after two internal reflections from the second face forms a real image. The distance of image from lens if the reflactive index of material of lens is 1.5 :

A ray of light is incident on a concave mirror . It is parallel to the principal axis and its height from principal axis is equal to the focal length of the mirror. The ratio of the distance of point B to the distance of the focus from the centre of curvature is (AB is the reflected ray)

RESNICK AND HALLIDAY-GEOMETRICAL OPTICS : REFRACTION-Practice questions(single correct choice type)
  1. A lens behaves as a converging lens in air and as a diverging lens in ...

    Text Solution

    |

  2. A convergent lens of focal length 20cm and made of a material with ref...

    Text Solution

    |

  3. A parallel beam of light is incident on a converging lens parallel to ...

    Text Solution

    |

  4. Which one of these ray diagrams is most accurate ?

    Text Solution

    |

  5. A point source of light is placed at a distance of 2f from a convergin...

    Text Solution

    |

  6. A converging lens can from a virtual image if the object is placed

    Text Solution

    |

  7. A concave mirror and a convex lens are of the same focal length in air...

    Text Solution

    |

  8. A section of a spherical shell of outer radius R(0) and inner radius R...

    Text Solution

    |

  9. A concave lens of glass, refractive index 1.5 has both surfaces of sam...

    Text Solution

    |

  10. When an object is at a distance u(1) and u(2) from the optical centre ...

    Text Solution

    |

  11. A concavo-convex glass (index=1.5) lens has radii of curvatures 60cm a...

    Text Solution

    |

  12. Angle of minimum deviation is equal to the angle of prism A of an equi...

    Text Solution

    |

  13. A ray of light passes through an equilateral prism such that the angle...

    Text Solution

    |

  14. The critical angle for glass to air refraction is least for which colo...

    Text Solution

    |

  15. A prism is made of glass which has a higher index of refraction for vi...

    Text Solution

    |

  16. The focal lengths of a convex lens for blue and red colors of light ar...

    Text Solution

    |

  17. A secondary rainbow is formed when light rays coming from the Sun unde...

    Text Solution

    |

  18. The dispersive powers of two lenses are 0.01 and 0.02 . If focal lengt...

    Text Solution

    |

  19. Focal lengths of two lenses are f and f' and dispersive powers of thei...

    Text Solution

    |

  20. The table lists the index of refraction for various substances at 20^(...

    Text Solution

    |