If the earth-sun distance were doubled, the intensity of radiation from the sun that reaches the earth's surface would if the earth-sun distance were doubled, the intensity of radiation from the sun that reaches the earth's surface would

a. quadruple.
b. double.
c. drop to 14.
d. drop to 12.

option C

Explanation:

given,                                                                

the  Earth-Sun distance were doubled                

intensity of radiation is inversely proportional to d²

                 I₀ ∝

if the distance is doubled then                    

                 I ∝

                 I ∝              

                 I ∝

                 I ∝ I₀

hence, the correct answer is option C

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )