Q. If the speed of light were 2/3 of its present value, the energy released in a given atomic explosion will be decreased by a fraction
A) 2/3
B) 4/9
C) 3/4
D) 5/9
Explanation
(b) Energy $\propto c^{2};\therefore$ Decrease in energy $\propto \frac{4}{9}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.