Home
Class 12
MATHS
When an object is kept at a distance of ...

When an object is kept at a distance of 30cm from a concave mirror, the image is formed at a distance of 10 cm. If the object is moved with a speed of `9cm s^(-1)` the speed with which the image moves is

A

10 cm/s

B

1 m/s

C

9 m/s

D

0.9 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
`V_(I)=-m^(2)V_(0)`
`=-((10)/(30))^(2)xx9=1m//s" "]`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    BANSAL|Exercise PHYSICS SECTION - 1 PART-B [MULTIPLE CORRECT CHOICE TYPE]|5 Videos

  • TEST PAPERS

    BANSAL|Exercise PHYSICS SECTION - 1 PART-C [INTEGER TYPE]|5 Videos

  • TEST PAPERS

    BANSAL|Exercise MATHS SECTION-3 Part-C[ Integer type ]|10 Videos

  • PROBABILITY

    BANSAL|Exercise All Questions|1 Videos

  • THERMODYNAMICS

    BANSAL|Exercise Match the column|7 Videos

Similar Questions

Explore conceptually related problems

An object is placed at a distance of 30 cm from a concave mirror and its real image is formed at a distance of 30 cm from the mirror. The focal length of the mirror is

If the object is placed at a distance of 10 cm from a plane mirror, then the image distance is ______ .

An object is kept at a distance 20 cm from a convex mirror of focal length 20 cm. The image will form at

A point object is placed at a distance of 30 cm from a convex mirror of focal length 30 cm. The image will form at

An object is placed at a distance of 20 cm from the pole of a concave mirror of focal length 10 cm. The distance of the image formed is

An object 2.5cm high is placed at a distance of 10cm from a concave mirror of radius of curvature 30 cm. The size of the image is

BANSAL-TEST PAPERS-PHYSICS SECTION - 1 PART-A [SINGLE CORRECT CHOICE TYPE]
  1. The adjacent figure shows cross section of a hollow glass tube of inte...

    Text Solution

    |

  2. A beam of light from medium 1 to medium 2 to medium 3 as shown in the ...

    Text Solution

    |

  3. A ray of light passes through a prism whose refracting angle is 5^(@) ...

    Text Solution

    |

  4. Light is incident at an angle phi with the normal to a plane containin...

    Text Solution

    |

  5. In a Young's Double slit experiment, the slits are illuminted by monoc...

    Text Solution

    |

  6. Abhishek, Hritik, John, and Amir are assigned the tasks of moving equa...

    Text Solution

    |

  7. Charge Q is given a displacement vec(r)=ahat(i)+bhat(j) in an electri...

    Text Solution

    |

  8. The phenomenon of interference demonstrates the fact that :

    Text Solution

    |

  9. A total charge Q is distributed over two concentric hallow uniform sph...

    Text Solution

    |

  10. A double convex lens made of glass (mu=1.5) is immersed in water (mu=4...

    Text Solution

    |

  11. A beam of light propagates through a medium-1 and falls onto another m...

    Text Solution

    |

  12. In a Young's double slit experiment, the separation between the slits ...

    Text Solution

    |

  13. In a double slit experiment, two parallel slits are illuminated first ...

    Text Solution

    |

  14. The maximum electric field at a point on the axis a uniformly charged ...

    Text Solution

    |

  15. An electric depole moment vec(p) is oriented parallel to a uniform ele...

    Text Solution

    |

  16. If g is the acceleration due to gravity on the earth's surface the cha...

    Text Solution

    |

  17. Two glass slabs of same thickness are joined to form an L as shown. A ...

    Text Solution

    |

  18. When an object is kept at a distance of 30cm from a concave mirror, th...

    Text Solution

    |