Home
Class 12
PHYSICS
In the given figure the angle (in degree...

In the given figure the angle (in degree) between the velocity vector of object and image is `alpha` . The value of `(alpha)/(10)` is

Text Solution

Verified by Experts

The correct Answer is:
9
`(vecV_(OM))_(x) = -(vecV_(IM))_(x)` & `(vecV_(OM))_(y) = - (vecV_(IM))_(y)`

`(vecV_(I))_(x) = -15 m//s`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE-05 (A)|35 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE-05 (B)|35 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE-04[A]|23 Videos

  • CURRENT ELECTRICITY

    ALLEN |Exercise EX.II|66 Videos

  • GRAVITATION

    ALLEN |Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

The value of beta of a transistor is 19. The value of alpha will be ……

In a transistor, the value of beta is 50. Calculate the value of alpha

The number of integral solutions of 1/x+1/y=1/6 " with " x le y " is " 'alpha' . The value of 'alpha-6' is ……….. .

A particle is projected from a point O with an initial speed of 30 ms^(-1) to pass through a point which is 40 m from O horizontally and 10 m above O. There are two angles of projection for which this is possible. These angles are alpha and beta . The value of |tan (alpha+beta)| is

A cuboidal elevator cabon is shown in the figure. A ball is thrown from point A on the floor of cabon when the elevator is falling under gravity. The plane of motions is ABCD and the angle of projection of the ball with AB, relative to elevator, if the ball collides with point C, is alpha . Then find the value of tan alpha .

A spherical mirror gives real image 3 times greater than object. If distance between object and image is 100 cm, then its focal length is

A point moves along an arc of a circle of radius R. Its velocity depends on the distance covered s as v=asqrts , where a is a constant. Find the angle alpha between the vector of the total acceleration and the vector of velocity as a function of s.

An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the insect and the surface is 1/3. If the line joining the centre of the hemispherical surface to the insect makes an angle alpha with the vertical, the maximum possible value of alpha is given by

In the following figure, a sphere of radius 3m rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of alpha is

ALLEN -GEOMETRICAL OPTICS-EXERCISE-04[B]
  1. Two large plane mirrors OM and ON are arranged at 150° as shown in the...

    Text Solution

    |

  2. Two plane mirrors makes an angle of 120^(@) with each other. The dista...

    Text Solution

    |

  3. A thief is running away in a car with velocity of 20 m//s. A police je...

    Text Solution

    |

  4. A surveyor on one bank of canal observed the image of the 4 inch and ...

    Text Solution

    |

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

    Text Solution

    |

  6. A concave mirror has the form of a hemisphere with a radius of R=60cm...

    Text Solution

    |

  7. A uniform,horizontal beam of light is incident upon a quarter cylinder...

    Text Solution

    |

  8. A point object lies 30 cm above water on the axis of a convex mirror o...

    Text Solution

    |

  9. A ray of light enters a diamond (n=2) from air and is being internally...

    Text Solution

    |

  10. A spider and a fly are on the surface of a glass sphere. As the fly mo...

    Text Solution

    |

  11. A hollow sphere of glass of R.I .n has small mark M on its interior su...

    Text Solution

    |

  12. In the figure shown, find the relative speed of a approach/ separation...

    Text Solution

    |

  13. Figure illustrates an aligned system consisting of three thin lenses. ...

    Text Solution

    |

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

    Text Solution

    |

  15. One side of radius of curvature R2=120 cm of a convexo-convex lens of ...

    Text Solution

    |

  16. A right angle prism(45^(@) - 90^(@) - 45^(@)) of refractive index n ha...

    Text Solution

    |

  17. A glass wedge with a small angle of refraction theta is placed at a ce...

    Text Solution

    |

  18. In the given figure the angle (in degree) between the velocity vector ...

    Text Solution

    |