Home
Class 12
PHYSICS
Light of intensity l is incident perpend...

Light of intensity l is incident perpendicularly on a perfectly reflecting plate of area A kept in a gravity free space. If the photons strike the plate symmetrically and initially the springs were at natural lengths, what is the maximum compression

A

`(2lA)/(KC)`

B

`(2lA)/(3KC)`

C

`(3lA)/(2KC)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
`F=(2lA)/(c ), " "Deltax=(2F)/(2K)=(2.(2lA)/(c ))/(2K) = (2lA)/(CK)`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    VIBRANT|Exercise PART - II : PHYSICS|56 Videos

  • REVIEW TEST

    VIBRANT|Exercise PART - II : PHYSICS|262 Videos

Similar Questions

Explore conceptually related problems

The ball strikes the block and sticks to it. Find the maximum compression of spring. ( L : natural length of spring)

A narrow monochromatic beam of light of intensity I is incident on a glass plate. Another identical glass plate is kept close to the first one and parallel to it. Each plate reflects 25% of the incident light and transmits the remaining. Calculate the ratio of minimum and maximum intensity in the interference pattern fromed by two beams obtained after reflection from each plate.

Block A of mass m is placed on a plank B . A light support S is fixed on plank B and is attached with the block A with a spring of spring constant K . Consider that initially spring is in its natural length. If the plank B is given an acceleration a, then maximum compression in the spring is (xma)/(k) . Find the value of x (All the surface are smooth)

A parallel beam of light of intensity I is incident on a glass plate. 25% of light is reflected in any reflection by upper surface and 50% of light is reflected by any reflection from lower surface. Rest is refracted The ratio of maximum to minimum intensity in interference region of reflected rays is

A spring having a spring constant k is fixed to a vertical wall as shown in Fig. A block of mass m moves with velocity v torards the spring from a parallel wall opposite to this wall. The mass hits the free end of the spring compressing it and is decelerated by the spring force and comes to rest and then turns the spring is decelerated by the spring force and comes to rest and then turns back till the spring acquires its natural length and contact with the spring is broken. In this process, it regains its angular speed in the opposite direction and makes a perfect elastice collision on the opposite left wall and starts moving with same speed as before towards right. The above processes are repeated and there is periodic oscillation. Q. What is the maximum compression produced in the spring?

Two blocks having masses 8kg and 16kg are connected to the two ends of a light spring. The system is placed on a smooth horizontal floor. An inextensible string also connects B with ceiling as shown in the figure at the initial moment. Initially the spring has its natural length. A constant horizontal force F is applied to the heavier block as shown. What is the maximum possible value of F so the lighter block doesn't loose contact with ground?

A narrow monochromatic beam of light of intensity I is incident on a galss plate as shown in figure. Another identical glass plate is kept close to the first one & parallel to it. Each glass plate reflects 25% of the light incident on it % transmits the remaining find the ratio of the minimum & the maximum intensities in the interference pattern formed by the two beams obtained after one reflection at each plate.

VIBRANT-TEST PAPERS-PART - II : PHYSICS
  1. Light of intensity l is incident perpendicularly on a perfectly reflec...

    Text Solution

    |

  2. A particle has an initial velocity of 9m//s due east and a constant ac...

    Text Solution

    |

  3. Two bodies begin to fall freely from the same height but the second fa...

    Text Solution

    |

  4. A stone is dropped from the top of a 400 m high tower. At the same tim...

    Text Solution

    |

  5. One end of a uniform rod of length l and mass m is hinged at A. It is ...

    Text Solution

    |

  6. A car A going north-east at 80km//h and another car B is going south-e...

    Text Solution

    |

  7. The acceleration of a train between two stations 2 kilometre apart is ...

    Text Solution

    |

  8. Two particles P and Q are moving as shown in the figure. At this momen...

    Text Solution

    |

  9. A boy throws a ball upward with velocity v(0)=20m//s. The wind imparts...

    Text Solution

    |

  10. For two projectiles launched with same initial velocity, the maximum h...

    Text Solution

    |

  11. In the time taken by the projectile to reach from A to B is t. Then th...

    Text Solution

    |

  12. The greatest height h of the sand pile that can be erected without spi...

    Text Solution

    |

  13. The pulleys and strings shown in the figure are smooth and of negligib...

    Text Solution

    |

  14. Two uniform rods of equal length but different masses are rigidly join...

    Text Solution

    |

  15. Two masses m and M are attached with strings as shown. For the system ...

    Text Solution

    |

  16. In the figure, the ball B is released from rest when the spring is in ...

    Text Solution

    |

  17. Two equal masses are attached to the two end of a spring of force cons...

    Text Solution

    |

  18. The work done by a force vec(F)=(-6x^(3)hat(i)) N in displacing a part...

    Text Solution

    |

  19. A particle moves with a velocity vec(v)=5hat(i)-3hat(j)+6hat(k) " "ms^...

    Text Solution

    |

  20. A uniform sphere is place on a smooth horizontal surface and as horizo...

    Text Solution

    |

  21. A force vec(F)=(2hat(i)+hat(j)+3hat(k)) N acts on a particle of mass 1...

    Text Solution

    |