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Standard XII
Physics
Gauss's Law
Question
The total solid angle subtended by the sphere is
0.25
π
1
π
2
π
4
π
0.5
π
A
0.25
π
B
2
π
C
1
π
D
0.5
π
E
4
π
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Solution
Verified by Toppr
Solid angle is given by area subtended divided by
r
2
.
Ω
=
Δ
S
r
2
Now, area subtended by a sphere is the whole surface area of sphere=
4
π
r
2
⟹
Ω
=
4
π
r
2
r
2
⟹
Ω
=
4
π
Answer-(E)
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