Question

If the unit of length and force be increased four times, then the unit of energy is

• A. (a) Increased 4 times
• A. (b) Increased 8 times
• A. (c) Increased 16 times
• A. (d) Decreased 16 times

Answer 1

(c)

Sol. Energy = force $\times$ distance, so if both are increased by 4 times then energy will increase by 16 times.