Home
Class 12
PHYSICS
Find energy absorbed by the surface of a...

Find energy absorbed by the surface of area `30 cm^2` in 40 minutes. If force applied by light is `2.5 xx10^-3` N normally?

A

`540 xx 10^7`J

B

`60 xx 10^7`J

C

`18 xx 10^8`J

D

`180 xx 10^7`J

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise SECTION-A|80 Videos

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise SECTION-B|40 Videos

  • JEE MAIN

    JEE MAINS PREVIOUS YEAR|Exercise All Questions|473 Videos

  • JEE MAIN 2022

    JEE MAINS PREVIOUS YEAR|Exercise Question|492 Videos

Similar Questions

Explore conceptually related problems

Monochromatic light of wavelength 3000 A is incident normally on a surface of area 4 cm^(2) . If the intensity of the light is 5xx10^(-2)W//m^(2) , determine the rate at which photons strike the surface

Monochromatic light of wavelength 3000 Å is incident normally on a surface of area 4 cm^(2) . If the intensity of the light is 15 xx 10^(-2) W//m^(2) . The rate at which photons strike the surface is K xx 10^(13) photon/s. The value of K is _________.

Light with intensity 20 W / cm^2 is falling along the normal on a surface , which completely abssorbs the light area of the surface is 25 cm^2 find the average force exerted y light on this surface in one hour .

A parellel beam of monochromatic light of wavelength 500 nm is incident normally on a perfectly absorbing surface. The power through any cross section of the beam is 10 W. Find (a) the number of photons absorbed per second by the surface and (b) the force exerted by the light beam on the surface.

If 2 .5 xx 10^(-6) N average force is exerted by a light wave on a non-reflecting surface of 30 cm^(2) area during 40 minutes of time span, the energy flux of light just before it falls on the surface is "____________" W //cm^(2) . ( Round off to the Nearest Integer ) (Assume complete absorption and normal incidence conditions are there )

An electromagnetic wave with pointing vector 5 W//m^(2) is absorbed by a surface of same area. If the force on the surface is 10^(-7) N, then area is

What is the potential energy of a soap film formed on a frame of area 3 xx10^(-3)m^(2) ? [ The surface tension of soap solution is 30 xx 10^(-3) N/m ]

JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B
  1. Find energy absorbed by the surface of area 30 cm^2 in 40 minutes. If ...

    Text Solution

    |

  2. A ball of mass 10 kg moving with a velocity 10sqrt3 m//s along the x-...

    Text Solution

    |

  3. As shown in the figure, a particle of mass 10 kg is placed at a point ...

    Text Solution

    |

  4. A particle performs simple harmonic motion with a period of 2 second. ...

    Text Solution

    |

  5. The voltage across the 10 resistor in the given circuit is x volt. ...

    Text Solution

    |

  6. A bullet of mass 0.1 kg is fired on a wooden block to pierce through i...

    Text Solution

    |

  7. Two separate wires A and B are stretched by 2 mm and 4 mm respectively...

    Text Solution

    |

  8. A parallel plate capacitor has plate area 100 m^2 and plate separation...

    Text Solution

    |

  9. The circuit shown in the figure consists of a charged capacitor of cap...

    Text Solution

    |

  10. An npn transistor operates as a common emitter amplifier with a power ...

    Text Solution

    |

  11. A person is swimming with a speed of 10 m/s at an angle of 120° with t...

    Text Solution

    |

  12. A body of mass 2 kg moves under a force of (2hati +3hatj +5hatk) N. It...

    Text Solution

    |

  13. A solid disc of radius 'a' and mass 'm' rolls down without slipping on...

    Text Solution

    |

  14. The energy dissipated by a resistor is 10 mj in 1 s when an electric c...

    Text Solution

    |

  15. For an ideal heat engine, the temperature of the source is 127^(@)C. I...

    Text Solution

    |

  16. In a parallel plate capacitor set up, the plate area of capacitor is 2...

    Text Solution

    |

  17. A deviation of 2^(@) is produced in the yellow ray when prism of crown...

    Text Solution

    |

  18. If one wants to remove all the mass of the earth to infinity in order ...

    Text Solution

    |

  19. A force vecF=4hati+3hatj+4hatk is applied on an intersection point of ...

    Text Solution

    |

  20. A closed organ pipe of length L and an open organ pipe contain gases o...

    Text Solution

    |

  21. A swimmer can swim with velocity of 12 km/h in still water. Water flow...

    Text Solution

    |