Question

Which of the following involves the application of a force?

• A. Pulling a box full of biscuits
• B. Pushing a huge rock
• C. Bending an aluminium rod from the middle
• D. Hearing to the rustling of leaves

Answer 1

Answer: (A), (B), (C)

The correct options are

A: Pulling a box full of biscuits

B: Pushing a huge rock

C: Bending an aluminium rod from the middle

Force is defined as an effort that can change the state of motion or shape of an object.

A light ray does not bring any change in the state of motion or shape of an object. Hence, it doesn't involve the application of a force.
However, for pushing a rock, bending an aluminium rod, or lifting a heavy object, a force is required.