A) four times as much photon flux
B) twice as much photon flux
C) the same amount of photon flux
D) half as much photon flux
E) one-fourth as much photon flux
2007-11-13 16:07:17 · 8 answers · asked by webb_ar 1 in Science & Mathematics ➔ Astronomy & Space
Light.
2007-11-13 16:16:11 · answer #1 · answered by Arther 6 · 0⤊ 0⤋
I vote for A.
I think if you picture the sun at the centre of a sphere of photon flux, then the flux is the total solar output per second divided by the surface area of that sphere.
The radius of the sphere is the distance from the sun to the earth.
The equation for the surface area of a sphere is 4pr squared, so if you reduce r by half, then the surface area is 1/4 of the size.
If the surface area is 1/4 of the size, then the flux will be four times as much.
2007-11-14 02:54:38 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Uh, if it's governed by the inverse square law I would say 1/((1/2)^2) = 4x as much photon flux. It's certainly fair to say we will get more because fewer of the photons will have a probability of scattering before they reach the earth.
To the person who asked, photon flux is the amount of photons (light particles) hitting/passing through a certain area. In this case, the area is the earth's surface area.
2007-11-14 00:30:24 · answer #3 · answered by Mel 4 · 2⤊ 0⤋
Inverse square law again - half the distance = 4 times the intensity - answer A.
2007-11-14 04:41:41 · answer #4 · answered by Anonymous · 0⤊ 0⤋
death by radiation.
what the heck is photon flux?
2007-11-14 00:25:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋
we wouldnt be here in the first place LOL
2007-11-14 01:05:53 · answer #6 · answered by Aziz A 1 · 0⤊ 0⤋
-A Sunburn that you wouldn't BELIEVE, -Oy Vey !!! :)
2007-11-14 00:15:39 · answer #7 · answered by Joseph, II 7 · 0⤊ 0⤋
1.21 jigawatts!!!
2007-11-14 00:16:04 · answer #8 · answered by Anonymous · 0⤊ 0⤋