Rays of light coming from the sun (a very distant object) are near and parallel to the principal axis of a concave mirror. After
1 answer:
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Explanation:
The electric field at a distance r from the charged particle is given by :
k is electrostatic constant
if r = 2 m, electric field is given by :
If r = 1 m, electric field is given by :
Dividing equation (1) and (2) we get :
So, at a point 1 m from the particle, the electric field is 4 times of the electric field at a point 2 m.
Explanation:
the answer is in the image above
