In cosmic rays 0.15 protons 
are entering the earth’s atmosphere. If the radius of the earth is 6400 km, the current received by the earth in the form of cosmic rays is nearly.
a)
0.12 A
b)
1.2 A
c)
12 A
d)
120 A
In cosmic rays 0.15 protons are entering the earth’s atmosphere. If the radius of the earth is 6400 km, the current received by the earth in the form of cosmic rays is nearly.
a)
0.12 A
b)
1.2 A
c)
12 A
d)
120 A
Question ID - 151630 | SaraNextGen Top Answer
In cosmic rays 0.15 protons are entering the earth’s atmosphere. If the radius of the earth is 6400 km, the current received by the earth in the form of cosmic rays is nearly.
a)
0.12 A
b)
1.2 A
c)
12 A
d)
120 A
|
In cosmic rays 0.15 protons |
|||||||
|
a) |
0.12 A |
b) |
1.2 A |
c) |
12 A |
d) |
120 A |
1 Answer
127 votes
Answer Key / Explanation : (a) -
|
(a) Surface area of earth, Charge entering the earth per sec per unit area
|
on solving
127 votes
Answer Link
127