By signing in you confirm you are 18 or older, or have your parent’s or guardian’s consent.

NDA 2 2025 GAT, question 67

Topic: Physics

Q67

A body sinks in water when

  1. (a) density of water is greater than density of body
  2. (b) density of water is less than density of bodyCorrect answer
  3. (c) density of water is equal to density of body
  4. (d) the body is heavy

Solution.

Answer: (b) density of water is less than density of body

  1. An unsupported body sinks when its average density exceeds the liquid’s density.
  2. Its weight then exceeds the greatest buoyant force available when submerged.
  3. “Heavy” alone is insufficient, because a large hollow object may float.