Home
Class 12
PHYSICS
The focal length of a converting lens ar...

The focal length of a converting lens are `f_(v) and f_(r)` for violet and red lights, respectively. Which of the following is correct?

A

`I_(R) lt I_(v)`

B

`m_(R) lt m_(v)`

C

`m_(R) gt m_(v)`

D

`I_(R) lt I_(v)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND WAVE OPTICS

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos

  • RAY OPTICS AND WAVE OPTICS

    VMC MODULES ENGLISH|Exercise EFFICIENT|49 Videos

  • RAY OPTICS

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-J|10 Videos

  • REVISION TEST-15 JEE - 2020

    VMC MODULES ENGLISH|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

The focal length ofa converging lens are f_v and f_r for violet and red light respectively.

If f(V) and f_(R) are the focal lengths of a convex lens for violet and red light respectively and F_(V) and F_(R) are the focal lengths of concave lens for violet and red light respectively, then we have

The focal lengths of a converging lens measured for violet, green and red colours of fv'f_(G)'f_(R) respectively. We will find (A). f_(R)gtf_(G)gtf_(V) (B). f_(v)ltf_(R)ltf_(G) (C). f_(V)gtf_(R)gtf_(G) (D). f_(V)=f_(R)=f_(G)

The focal lengths of a convex lens for red, yellow and violet rays are 100 cm, 98 cm and 96 cm respectively. Find the dispersive power of the material of the lens.

An equiconvex lens is cut into two halves along (i) XOX^(') and (ii) YOY^(') as shown in the figure. Let f,f^(')f^('') be the focal lengths of the complete lens, of each half in case (i) , and of each half in case (ii) , respectively Choose the correct statement from the following

The focal lengths of a thin lens for red and violet light are 90.0 cm and 86.4cm respectively. Find the dispersive power of the material of the lens. Make appropriate assumptions.

A thin convex lens has focal length f_(1) and a concave lens has focal length f_(2) . They are kept in contact. Now, match the following two columns.

How are power and focal length of a lens related ? You are provided with two lenses of focal length 20 cm and 40 cm respectively. Which lens will you use to obtain more convergent light ?

Choose the correct alternative corresponding to the object distance 'u', image distance 'v' and the focal length 'F' of a converging lens from the following . The average speed of the image as the object moves with the uniform speed from distance (3F)/(4) to (F)/(2) is greater than the average speed of the image as the object moves with same speed from distance (F)/(2) "to" (F)/(4) The minimum distance between a real object and its real image in case of a converging lens is 4F where F is its focal length.

Frequencies of various radiations are given as f_(v) to Visible light f_(r ) to Radio waves f_(uv) to Ultra Violet waves The which of the following is true?

VMC MODULES ENGLISH-RAY OPTICS AND WAVE OPTICS -IMPECCABLE
  1. The focal length of a converting lens are f(v) and f(r) for violet and...

    Text Solution

    |

  2. Wavelength of light in vaccum is 5890 Å, then its wavelength in glass ...

    Text Solution

    |

  3. Light of wavelength 7200Å in air has a wavelength in glass (mu=1.5) eq...

    Text Solution

    |

  4. Object is placed 15 cm from a concave mirror of focal length 10 cm, th...

    Text Solution

    |

  5. Two mirrors are placed at right angle to each other. A man is standing...

    Text Solution

    |

  6. In the Young's double-slit experiment, the intensity of light at a poi...

    Text Solution

    |

  7. What is the minimum thickness of thin film required for constructive i...

    Text Solution

    |

  8. The critical angle of a certain medium is sin^(-1)(3//5). The polarisi...

    Text Solution

    |

  9. When the angle of incidence on a material is 60^(@), the reflected lig...

    Text Solution

    |

  10. The Brewster angle for the glass air interface is 54.74^(@) if a ray o...

    Text Solution

    |

  11. Wavelength of given light waves in air and in a medium are 6000 Å and ...

    Text Solution

    |

  12. The time required for the light to pass through a glass slab ( refract...

    Text Solution

    |

  13. A prism having refractive index sqrt2 and refractive angle 30^@ has on...

    Text Solution

    |

  14. In opticle fibres,the refractive index of the core is

    Text Solution

    |

  15. A biconvex lens has a radius of curvalure of magnitude 20 cm Which one...

    Text Solution

    |

  16. A convex lens of focal length 30 cm produces 5 times magnified real im...

    Text Solution

    |

  17. A transparent plastic bag filled with air forms a concave lens. Now, i...

    Text Solution

    |

  18. Given figures shows the arrangement of two lenses. The radii of curvat...

    Text Solution

    |

  19. A ray of light is incident at 65^(@) on one face of a prism of angle o...

    Text Solution

    |

  20. Two convex lens, of focal length 25 cm and 20 cm respectively are put ...

    Text Solution

    |

  21. For a wavelength of light and scattering object is size a, all wavelen...

    Text Solution

    |