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The sun radiates electromagnetic energy ...

The sun radiates electromagnetic energy at the rate of `3.9xx10^(26)W`. Its radius is `6.96xx10^(8)m`. The intensity of sun light at the solar surface will be (in `W//m^(2)`)

A

`1.4 xx 10^(4)`

B

`2.8 xx 10^(5)`

C

`64 xx 10^(6)`

D

`5.6 xx 10^(-7)`

Text Solution

Verified by Experts

The correct Answer is:
C
`I = (P)/(4 pi r^(2))`
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NARAYNA-ELECTROMAGNETIC WAVES -EXERCISE -1(H.W)
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  5. The electrical field in the gap of a condenser charges as 10^(12)Vm^(-...

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  6. An LC current contains inductance L=1mu H and capacitance C=0.01 muF. ...

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  8. The all India Radio, station at Vijayawada transmits its signals at 84...

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  9. A point source of electromagnetic radiation has an average power outpu...

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  10. A plane E.M. wave of frequency 40 MHz travels along X-axis. At same po...

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  11. A plane electromagnetic wave of frequency 25 Mhz travels in free space...

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  12. An electruc field of 300V//m is confined to a circular area 10 cm in d...

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  13. A lamp emits monochromatic green light uniformly in all directions. Th...

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  14. Light with energy flux 36w//cm^(2) is incident on a well polished meta...

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  15. The rms value of the electric field of the light from the sun is 720 N...

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  16. In an electromagnetic wave, the amplitude of electric firld is 1 V/m. ...

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  17. About 5% of the power of a 100W bulb is converted to visible radiation...

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  18. The sun radiates electromagnetic energy at the rate of 3.9xx10^(26)W. ...

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  19. The intensity of TV broad cast station of E=800sin(10^(9)t-kx) V//M is...

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  20. v22

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