Home
Class 12
PHYSICS
The energy reveived from the sun by the ...

The energy reveived from the sun by the earth and surrounding atmosphere is 2 cal`cm^(-2)` "min"`^(-1)` on a surface normal to the rays of sun.
Q. What is the total energy received, in joule, by the earth and its atmosphere?

A

`10.645xx10^(18)J"min"^(-1)`

B

`10.645xx10^(15)J"min"^(-1)`

C

`8.645xx10^(17)J"min"^(-1)`

D

`9.645xx10^(14)J"min"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
The effective area of Earth receiving radiation normally `=pi((D)/(2))^2`
`=pi((1.27xx10^(4))/(4))`sq km
Energy received by Earth per minute is
`(pi)/(4)(1.27)^2xx10^(18)xx2xx4.2`
`=10.645xx10^(18)`J `min^(-1)`
Promotional Banner

Topper's Solved these Questions

  • PHOTOELECTRIC EFFECT

    CENGAGE PHYSICS|Exercise Integer|9 Videos

  • PHOTOELECTRIC EFFECT

    CENGAGE PHYSICS|Exercise Single Correct Answer Type|7 Videos

  • PHOTOELECTRIC EFFECT

    CENGAGE PHYSICS|Exercise Multiple Correct|10 Videos

  • NUCLEI

    CENGAGE PHYSICS|Exercise QUESTION BANK|59 Videos

  • RAY OPTICS

    CENGAGE PHYSICS|Exercise DPP 1.6|12 Videos

Similar Questions

Explore conceptually related problems

The energy received from the sum by earth and its surrounding atmosphere is 2 "cals"//cm^(2)//"min" on a surface normal to the rays of sun. (a) What is the total energy received in joules by earth and its atmosphere. (b) What is the total energy radiated in J/m by sun to the universe? Distance of sun to earth is .149xx10^(8) km. (c) At what rate in mega-grams per minute must hydrogen be consumed in the fusion reaction to provide the sun with the energy it radiate? Take mass of hydrogen atom-1.008145amu. Take mass of He atom=4.003874 amu.

The energy reveived from the sun by the earth and surrounding atmosphere is 2 cal cm^(-2) min^(-1) on a surface normal to the rays of sun. Q. What is the total energy radiated, in J min^(-1) , by the sun to the universe? Distance of the sun from the earth is 1.49xx10^(11) m.

The energy reveived from the sun by the earth and surrounding atmosphere is 2 cal cm^(-2) "min"^(-1) on a surface normal to the rays of sun. Q. At what rate, in mega gram per minute, must hydrogen be consumed in fusion reaction to provide the sun with the energy it radiates? (Take mass defect per reaction to be 0.028706 a.m.u)

Imagine that the sun ran out of energy. What would happen to our energy resources on Earth?

The radiant energy from the Sun incident normally at the surface of earth is 20kcal//m^(2) min What would have been the radiant energy incident normally on the earth if the sun had a temperature twice of the present one ? .

CENGAGE PHYSICS-PHOTOELECTRIC EFFECT-Linked Comprehension
  1. Light having photon energy hupsilon is incident on a metallic plate ha...

    Text Solution

    |

  2. Light having photon energy hupsilon is incident on a metallic plate ha...

    Text Solution

    |

  3. When light of sufficiently high frequency is incident on a metallic su...

    Text Solution

    |

  4. When light of sufficiently high frequency is incident on a metallic su...

    Text Solution

    |

  5. When light of sufficiently high frequency is incident on a metallic su...

    Text Solution

    |

  6. The energy reveived from the sun by the earth and surrounding atmosphe...

    Text Solution

    |

  7. The energy reveived from the sun by the earth and surrounding atmosphe...

    Text Solution

    |

  8. The energy reveived from the sun by the earth and surrounding atmosphe...

    Text Solution

    |

  9. When a high frequency electromagnetic radiation is incident on a metal...

    Text Solution

    |

  10. When a high frequency electromagnetic radiation is incident on a metal...

    Text Solution

    |

  11. When a high frequency electromagnetic radiation is incident on a metal...

    Text Solution

    |

  12. A Cs plate is irradiated with a light of wavelength lamda=(hc)/(phi),p...

    Text Solution

    |

  13. A Cs plate is irradiated with a light of wavelength lamda=(hc)/(phi),p...

    Text Solution

    |

  14. A Cs plate is irradiated with a light of wavelength lamda=(hc)/(phi),p...

    Text Solution

    |

  15. A pushed dye laser emits light of wavelength 585 nm. Because this wave...

    Text Solution

    |

  16. A pushed dye laser emits light of wavelength 585 nm. Because this wave...

    Text Solution

    |

  17. A pushed dye laser emits light of wavelength 585 nm. Because this wave...

    Text Solution

    |

  18. The radius of and alpha-particle moving in a circle in a constant magn...

    Text Solution

    |

  19. The de Broglie wavelength of an electron moving with a velocity of 1.5...

    Text Solution

    |

  20. An element of atomic number 9 emits K(alpha) X-ray of wavelength lamda...

    Text Solution

    |