1.

(A) : A spinning ball in a region of uniform wind motion, will get an uplift (or) downlift. (R ) : Due to spin of the all in a region of uniform wind motion, the difference in velocity of air flow is present between the lower and upper position of ball, leading to varying pressure.

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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