Question

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

• A. 16 times
• B. 8 times
• C. 2 times
• D. 4 times

Hint:

Energy depends on both force and distance, so changes in both will multiply.

Answer 1

The Correct Option is A

Step 1: Formula for Energy.
Energy is given by: \[ E = F \cdot d \] where \( F \) is the force and \( d \) is the distance.

Step 2: Increase in units.
If both the force and length are increased by 4 times, the energy will increase by \( 4 \times 4 = 16 \) times. Thus, the correct answer is (1).