Multiple choice

Assertion: While scuba diving, the person notices air bubbles underwater. The size of a bubble is small when it is deep underwater. But the size increases as it moves upwards. Reason: More air enters into the bubbles from top and leads to increase in size.

  1. If both assertion and reason are true and the reason is correct explanation of assertion.

  2. If both assertion and reason are true but reason is not a correct explanation of assertion.

  3. If assertion is true and reason is false.

  4. If both assertion and reason are false.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(1) While scuba diving, the person notices air bubbles underwater. The size of a bubble is small when it is deep underwater. But the size increases as it moves upwards. (2) It is due to decrease in pressure applied by water column on air bubbles as they rise up.

Keep practicing — related questions