Home
Class 12
PHYSICS
A bird is flying with a velocity v betwe...

A bird is flying with a velocity v between two long vertical mirrors making an angle `theta` with mirror `M_(1)` as shown. Then what will be the relative velocity of approach between the images formed by the mirrors due to the `1st` reflection in each of them

A

`v "sin"theta`

B

`2v"sin"theta`

C

`2(v"sin"theta + L)`

D

`zero`

Text Solution

Verified by Experts

The correct Answer is:
D

`implies v_(I)_(1)I_(2)= v_(I)_(2) - v_(I)_(1) = 0`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE-2|44 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE-3|12 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE - 05 (B) (ASSERTION & REASON )|9 Videos

  • CURRENT ELECTRICITY

    ALLEN|Exercise EX.II|66 Videos

  • GRAVITATION

    ALLEN|Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

A man is walking under an inclined mirror at a constant velocity v along the x-axis. If the mirror is inclined at an angle theta with the horizontal then what is the velocity of the image ?

If an object moves towards a plane mirror with a speed v at an angle theta to the perpendicular to the plane of the mirror, find the relative velocity between the object and the image.

A person walks at a velocity v in a straight line forming an angle theta with the plane of a plane mirror. With what velocity v_(rel) the apporaches his image ?

An object is placed in front of a convex mirror at a distance of 50cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30cm, it is found that there is no parallax between the images formed by the two mirrors. What is the radius of curvature of the convex mirror?

Figure shows two plane mirrors and an object O placed between them what will be distance of the first three imgages from the mirror M_2 ?

Two plane mirrors are kept parallel at 20 cm from each other. A point object O is placed exactly in between them. Calculate distance between second images formed by two mirros.

Two plane mirrors are placed making an angle theta in between them. Write an expression for the number of images formed of an object placed in between the mirrors. State the condition, if any.

State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at 90^@

State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at 60^@

If two mirrors are inclined at some angle and an object is placed between the mirrors and there are 7 images formed for an object, then the angle between the mirrors is

ALLEN-GEOMETRICAL OPTICS-EXERCISE- 01
  1. A mirror is inclined at an angle of theta with the horizontal. If a ra...

    Text Solution

    |

  2. Two mirror labelled L(1) for left mirror and L(2) for right mirror (L(...

    Text Solution

    |

  3. A bird is flying with a velocity v between two long vertical mirrors m...

    Text Solution

    |

  4. A plane mirror is moving with velocity 4 (hat i) + 4 (hat j) + 8 (hat ...

    Text Solution

    |

  5. In the figure shown, how many images of the star will an observer at O...

    Text Solution

    |

  6. The distance of an object from a concave spherical mirror is equal to ...

    Text Solution

    |

  7. A concave mirror of focal length 20 cm is cut into two parts from the ...

    Text Solution

    |

  8. Radius of curvature of each mirror is R. 'O' is object. Consider first...

    Text Solution

    |

  9. A convex mirror of focal length 'f' is placed at the origin with its r...

    Text Solution

    |

  10. The x-z plane separates two media A and B of refractive indices mu(1) ...

    Text Solution

    |

  11. A ray of light travelling in a medium of refractive index mu is incide...

    Text Solution

    |

  12. Consider the situation shown in figure. Water (mu(w) = (4)/(3)) is fil...

    Text Solution

    |

  13. A plane mirror is placed at the bottom of a tank containing a liquid o...

    Text Solution

    |

  14. When a pin is moved along the principal axis of a small concave mirror...

    Text Solution

    |

  15. A ray of light (R(1)) is incident on a glass slab at an angle equal to...

    Text Solution

    |

  16. Refractive index of a glass cube is sqrt(2). A ray of light is inciden...

    Text Solution

    |

  17. A ray of light travels from an optically denser to rarer medium. The c...

    Text Solution

    |

  18. The distance of final image from AB as observed by observer is P is

    Text Solution

    |

  19. What is the least radius through which an optical fiber of core diamet...

    Text Solution

    |

  20. A ray of light from a denser medium strikes a rarer medium at an angle...

    Text Solution

    |