Question

Which of the following involves the application of a force?

• A. Pulling a box full of biscuits
• B. Pushing a huge rock fallen in front of your car
• C. Folding an aluminium rod from the middle
• D. All of the above

Answer 1

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

The correct options are
A

Pulling a box full of biscuits

B

Pushing a huge rock fallen in front of your car

C

Folding 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.