Home
Class 12
PHYSICS
An object is at a distance of a=36 cm fr...

An object is at a distance of `a=36` cm from a lens with a focal length `f=30` cm. A flat mirror turned through `45^(@)` with respect to the optic axis of the lens is placed behind at a distance of `l = 1m`. At what distance `h` from the optic axis should the bottom of a tray filled with water upto depth 20 cm be placed to obtain a sharp image of the object at the bottom ?

Text Solution

Verified by Experts

The correct Answer is:
`0.85 m`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs with One or More Options Correct|30 Videos

  • ELECTROSTATICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numberical Problems|73 Videos

  • HEAT AND THERMAL EXPANSION

    PHYSICS GALAXY - ASHISH ARORA|Exercise UNSOLVED NUMRICAL PROBLEMS FOR PREPARATION OF NSEP, INPhO & IPhO|82 Videos

Similar Questions

Explore conceptually related problems

An object is placed at a distance of 30 cm from a convex lens of focal length 20 cm.

An object is placed at a distance of 30 cm from a concave lens of focal length 15 cm . Find the nature and position of the image.

An object is placed at a distance of 30 cm from a concave lens of focal length 15 cm. What is the height of the object if the height of the image is 3 cm ?

An object is placed at a distance of 50cm from a concave lens of focal length 20cm. Find the nature and position of the image.

An object of 10 cm is.placed at a distance of 20 cm from a lens of focal length 25 cm. The object is placed erect on the principal axis of the. lens yet a crooked image was formed. Explain why.

An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm . The image is formed on the other side of the lens at a distance

A point object is placed at distance 60cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to principal axis of lens and at distance 40cm from it the final image would be formed at distance of:

PHYSICS GALAXY - ASHISH ARORA-GEOMETRICAL OPTICS-Unsolved Numerical Problems
  1. A man stands on vertical tower of height 20 cm. Calculate the distanc...

    Text Solution

    |

  2. The redius of curvature of the convex face of a plano-convex lens is 1...

    Text Solution

    |

  3. An object is at a distance of a=36 cm from a lens with a focal length ...

    Text Solution

    |

  4. The focal length of a thin biconvex lens is 20 cm. When an object is m...

    Text Solution

    |

  5. An object is placed 20 cm to the left of a convex lens of focal length...

    Text Solution

    |

  6. A glass sphere with centre O is shown in the figure, AOB and COD are t...

    Text Solution

    |

  7. A hollow sphere of glass of inner and outer radii R and 2R respectivel...

    Text Solution

    |

  8. Two thin similar watch glass pieces are joined together,front to fron...

    Text Solution

    |

  9. Two convex lenses of focal lengths f(1) and f(2) are placed coaxially,...

    Text Solution

    |

  10. A prism of angle 60^(@) deviates a ray of light through 31^(@) for two...

    Text Solution

    |

  11. Two large plane mirrors OM and ON are arranged at 150° as shown in the...

    Text Solution

    |

  12. A concave lens of focal length 20 cm is placed 15 cm in front of a con...

    Text Solution

    |

  13. A double convex lens is placed on a horizontal plane mirror. A pin hel...

    Text Solution

    |

  14. A prism has refractive index sqrt((3)/(2)) and refractive angle 90^@. ...

    Text Solution

    |

  15. Image of an object approaching a convex mirror of radius of curvature ...

    Text Solution

    |

  16. A ray is incident on a glass sphere as shown.The opposite surface of t...

    Text Solution

    |

  17. Light is incident normally on the short face of a 30^@-60^@-90^@ prism...

    Text Solution

    |

  18. A convex lens of crown glass is perfectly cemented to a plano-concave ...

    Text Solution

    |

  19. A converging system of convex lenses free from chromatic aberration an...

    Text Solution

    |

  20. For a ray of light refracted through a prism of angle 60^(@), the angl...

    Text Solution

    |