Home
Class 12
PHYSICS
An object is approaching a fixed plane m...

An object is approaching a fixed plane mirror with velocity `5ms^(-1)` making an angle of `45^(@)` with the normal. The speed of image w.r.t. the mirror is

A

`5ms^(-1)`

B

`5//sqrt(2)ms^(-1)`

C

`5sqrt(2)ms^(-1)`

D

`10ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
a.

Speed of image w.r.t. mirror
`sqrt(((5)/(sqrt(2)))^(2)+((5)/(sqrt(2)))^(2))=5ms^(-1)`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS|Exercise Assertion-Reasoninig|2 Videos
  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS|Exercise Linked Comprehension|51 Videos
  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS|Exercise Subjective|26 Videos
  • FRICTION

    CENGAGE PHYSICS|Exercise QUESTION BANK|1 Videos
  • GRAVITATION

    CENGAGE PHYSICS|Exercise Question Bank|39 Videos

Similar Questions

Explore conceptually related problems

Fill in the Blanks Q An object is kept symmetrically between two plane mirrors making an angle of 40° between them. The number of images of the object in the mirrors is…...................

A real object is moving toward a fixed spherical mirror. The image

If a ray of light incident on a plane mirror is such that it makes an angle of 30^@ with the mirror, then the angle made by the reflected ray with the mirror is

Two plane mirrors are inclined at an angle of 60^(@) . An object is placed between the mirrors. The number of images formed by the two mirrors is

An object is moving towards a mirror with a velocity of 10 ms^(-1) as shown in the figure. If the collision between the mirror and the object is perfectly elastic, then the velocity of the image after collision with mirror in vector form is

Assertion : When object moves in a direction perpendicular to a fixed plane mirror then velocity of image with respect object is double in magnitude to the magnitude of velocity of object. Reason : Distance of image from the plane mirror is always same as distance of object from the plane mirror.

A cockroach is flying towards a plane mirror in perpendicular direction with a velocity of 4 mm s^(1) . Find the speed of its image in the mirror and also find out the angle of incidence , angle of reflection and angle of deviation.

CENGAGE PHYSICS-GEOMETRICAL OPTICS-Single Correct
  1. For a prism kept in air, it is found that for an angle of incidence 60...

    Text Solution

    |

  2. Choose the correct mirror image of

    Text Solution

    |

  3. An object is approaching a fixed plane mirror with velocity 5ms^(-1) m...

    Text Solution

    |

  4. A point source of light S is placed in front of a perfectly reflecting...

    Text Solution

    |

  5. A point source of light is placed in front of a plane mirror as shown ...

    Text Solution

    |

  6. A concave refractive surface of a medium having refractive index mu pr...

    Text Solution

    |

  7. A convex spherical refracting surface with radius R separates a medium...

    Text Solution

    |

  8. A concave spherical refractive surface with radius R separates a mediu...

    Text Solution

    |

  9. Two lenses shown in figure. Are illuminated by a beam of parallel ligh...

    Text Solution

    |

  10. In the arrangement shown in figure., the image of the extended object ...

    Text Solution

    |

  11. The table below shows object and image distances for four objects pla...

    Text Solution

    |

  12. A fish looks upward at an unobstructed overcast sky. What total angle ...

    Text Solution

    |

  13. For the situations shown in figure, determine the angle by which the m...

    Text Solution

    |

  14. A real object is placed in front of a convex mirror (fixed).The object...

    Text Solution

    |

  15. A point is placed in front of thick plane mirror as shown in figure. F...

    Text Solution

    |

  16. Rays from a lens are converging toward a point P, a shown in Figure. H...

    Text Solution

    |

  17. A right-angled prism of apex angle 4^(@) and refractive index 1.5 is l...

    Text Solution

    |

  18. Find the net deviation produced in the incident ray for the optical in...

    Text Solution

    |

  19. When an object is placed 15cm from a lens, a virtual image is formed. ...

    Text Solution

    |

  20. A glass hemisphere of radius R and of material having refractive index...

    Text Solution

    |