Assertion : A helium filled balloon does not rise indefinately in… - Vidyadip

MCQ

Assertion : A helium filled balloon does not rise indefinately in air but halts after a certain height.

Reason : Viscosity opposes the motion of balloon. Choose any one of the following four responses:

A
if both $(A) $ and $ (R)$ are true and $(R)$ is the correct explanation of $(A)$
✓
if both $(A) $ and $ (R) $ are true but $(R)$ is not correct explanation of $(A)$
C
if both $ (a) $ and $(R)$ are true but $(R)$ is not correct explanation of
D
if $(A) $ is true but $(R)$ is false

✓

Answer

Correct option: B.

if both $(A) $ and $ (R) $ are true but $(R)$ is not correct explanation of $(A)$

b

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