Home
Class 12
PHYSICS
Two convex lenses of focal lengths 0.3m ...

Two convex lenses of focal lengths `0.3m` and `0.05m` are used to make a telescope. The distance kept between the two is

A

`0.35 m`

B

`0.25 m`

C

`0.175 m`

D

`0.15 m`

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    ERRORLESS |Exercise Refraction of Light at Plane Surfaces|9 Videos
  • RAY OPTICS

    ERRORLESS |Exercise Refraction at Curved Surface|8 Videos
  • MAGNETISM

    ERRORLESS |Exercise Assertion & Reason|1 Videos
  • WAVE OPTICS

    ERRORLESS |Exercise SET|23 Videos

Similar Questions

Explore conceptually related problems

The power of a lens of focal length 0.5 m is :

The power of a lens of focal length 0.5 m is :

You are given two convex lenses of focal lengths 10 cm and 60 cm. To make a telescope, which of the two lenses will you use as object lens and which one as eye lens ?

Two convex lenses of focal length 20 cm and 1 cm constitute a telescope. The telescope is focussed on a point which is 1 m away from the objective. Calculate the magnification produced and the length of the tube. If the final image is formed at distance of 25 cm from of eyepiece.

A compound microscope consists of two convex lenses of focal lengths 0.02 m and 0.15 m. An object is placed at a distance of 0.025 m from the object glass and the final image is formed at the least distance of distinct vision. Find the magnification produced and the distance between the lenses.

Two convex lenses of focal length f_1 and f_2 are mounted coaxially separated by a distance. If the power of the combination is zero, the distance between the lenses is

Two convex lenses of focal length 0.01 , and 0.06 m, respectively are arranged to from a microscope. A small object is placed 0.012 m from object glass. If the image seen appears to be 0.25 m from the eye-piece, what is the distance between the object glass and eye-piece?

How would you combine two lenses of focal lengths 25 cm and 2.5 cm to make a telescope ? What is the magnifying power of this telescope ?

ERRORLESS -RAY OPTICS-SET
  1. Two convex lenses of focal lengths 0.3m and 0.05m are used to make a t...

    Text Solution

    |

  2. In an astronomical telescope in normal adjustment a straight black lin...

    Text Solution

    |

  3. Three lenses L(1) , L(2) , L(3) are placed co-axially as shown in figu...

    Text Solution

    |

  4. An object is placed at a point distant x from the focus of a convex le...

    Text Solution

    |

  5. The diameter of the eye-ball of a normal eye is about 2.5 cm . The pow...

    Text Solution

    |

  6. In a thin spherical fish bowl of radius 10 cm filled with water of ref...

    Text Solution

    |

  7. A small fish 0.4 m below the surface of a lake is viewed through a sim...

    Text Solution

    |

  8. A water drop in air refractes the light ray as

    Text Solution

    |

  9. Which of the following ray diagram show physically possible refraction...

    Text Solution

    |

  10. Following figure shows the multiple reflections of a light ray along a...

    Text Solution

    |

  11. When the rectangular metal tank is filled to the top with an unknown l...

    Text Solution

    |

  12. A concave mirror and a converging lens (glass with mu = 1.5) both have...

    Text Solution

    |

  13. A ray of light strikes a plane mirror M at an angle of 45^(@) as shown...

    Text Solution

    |

  14. A slab of glass, of thickness 6 cm and refractive index 1.5, is placed...

    Text Solution

    |

  15. A point source of light S is placed at the bottom of a vessel containi...

    Text Solution

    |

  16. A point object is placed midway between two plane mirrors a distance a...

    Text Solution

    |

  17. A convergent beam of light is incident on a convex mirror so as to con...

    Text Solution

    |

  18. PQR is a right angled prism with other angles as 60^(@) and 30^(@). Re...

    Text Solution

    |

  19. When a ray is refracted from one medium to another, the wavelength cha...

    Text Solution

    |

  20. Two this lenses, when in contact, produce a combination of power +10 d...

    Text Solution

    |

  21. The plane faces of two identical plano convex lenses, each with focal ...

    Text Solution

    |