1.

(A) : When air is blown between two ping pong balls which are suspended freely they move closer (R ) : When air is blown between two ping pong balls the pressure between the balls decreases

Answer»

Both (A) and (R ) are true and (R ) is the correct EXPLANATION of (A)
Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
(A) is true but (R ) is false
Both (A) and (R ) are false

ANSWER :A


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