Home
Class 12
PHYSICS
In Figure. , find the position of final ...

In Figure. , find the position of final image formed.

Text Solution

Verified by Experts

For convex lens:
`v=(uf)/(u+f)=(-15xx10)/(-15+10)=30cm`
For concave lense: `u=(30-25)=5cm`
`u=(30-25)=5cm`
`v=(uf)/(u+f)=(5(-10))/(5-10)=10cm`
So, final image is formed 10 cm to the right of the concave lens.
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Subjective|26 Videos

  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Single Correct|221 Videos

  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Exercise1.6|15 Videos

  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS ENGLISH|Exercise dpp 3.3|15 Videos

  • HEATING EFFECT OF CURRENT

    CENGAGE PHYSICS ENGLISH|Exercise Thermal Power in Resistance Connected in Circuit|27 Videos

Similar Questions

Explore conceptually related problems

An object is placed on the principle axis of a concave mirror of focal length 10cm at a distance of 21cm from it. A glass slab is placed between the mirror and the object as shown in figure. Find the distance of final image formed by the mirror.

(a) Under what conditions is the phenomenon of total internal reflection of light observed? Obtain the relation between the critical angle of incidence and the refractive index of the medium. (b) Three lenses of focal lengths +10cm,-10cm and +30cm are arranged coaxially as in the figure given below. Find the position of the final image formed by the combination. (b) (i) Write a balanced equation showing nuclear fission of Uranium (""_(92)^(235)U) nucleus. (ii) In a nuclear reactor, what is the function of : (a) Cadmium rods? (b) Graphite rods?

An object is placed 10cm away form a glass piece (n = 1.5) of length 20cm bounded by spherical surfaces of radii of curvaure 10cm . Find the position of final image formed after two refractions at the spherical surfaces.

A point ofject 'O' lies in front of the lens as shown in figure. Find the final position of image formed by the combined lenses.

An illuminated point object O is kept 20 cm from a thin convex lens L_(1) of focal length 15 cm as shown below. A thin diverging lens L_(2) of focal length 25 cm is kept co - axial with the first lens and 35 cm from it, as shown in figure below : Find the position of the final image formed by this combination of lenses.

If the optic axis of convex and concave lenses are separated by a distance 5 mm as shown in the figure. Find the coordinate of the final image formed by the combination if parallel beam of light is incident on lens. Origin is at the optical centre of convex lens

Find the positon of final images formed. (The gap shown in figure of negligible width)

A point is placed in front of thick plane mirror as shown in figure. Find the location of final image w.r.t. object.

An object is placed between a plane mirror and a concave mirror of focal length 15 cm as shown in Figure . Find the position of the images after two reflections.

In Fig, find position of second image I_2 formed after two times refraction from two plane surfaces AB and CD.

CENGAGE PHYSICS ENGLISH-GEOMETRICAL OPTICS-Exercise1.7
  1. In Figure. , find the position of final image formed.

    Text Solution

    |

  2. Figure, shown two converging lenses. Incident rays are parallel to the...

    Text Solution

    |

  3. In Figure., find the position of final image formed.

    Text Solution

    |

  4. In Fig. what should be the value of d so that image is formed on the ...

    Text Solution

    |

  5. In Fig,, if the image of object O has to coincide with itself, then w...

    Text Solution

    |

  6. A convex lens of focal length 20cm is placed 10cm away from a second ...

    Text Solution

    |

  7. When an object is placed at the proper distance ot the left of a conve...

    Text Solution

    |

  8. A telephoto combination consists of convex lens of focal length 30cm a...

    Text Solution

    |

  9. A convex lens is cut in half along its principal axis and the two halv...

    Text Solution

    |

  10. A plano-convex lens is silvered on its plane side. The radius of curva...

    Text Solution

    |

  11. A convex lens of focal length 10cm is placed 30 cm in front of a secon...

    Text Solution

    |

  12. A concave mirror of focal length 30 cm is placed on the flat horizont...

    Text Solution

    |

  13. The convex side of a thin concavo-convex lens of glass of refractive i...

    Text Solution

    |

  14. The source is placed 30 cm from a convex lens which has a focal length...

    Text Solution

    |

  15. If final image after two refractions through the lens and one reflecti...

    Text Solution

    |

  16. A point object O is placed at a distance of 20 cm from a convex lens o...

    Text Solution

    |

  17. The focal length of a thin convex-lens is 30cm. At a distance of 10 cm...

    Text Solution

    |

  18. A plano-convex glass lens (mu(g)=3//2) of radius of curvature R=10cm i...

    Text Solution

    |

  19. On a horizontal plane mirror, a thin equiconvex lens of glass is place...

    Text Solution

    |

  20. A pin is placed 10cm in front of a convex lens of focal length 20cm, m...

    Text Solution

    |