Assertion (A): A jet aircraft moving at a Mach number equal to 1 travels faster at an altitude of 15 km than while moving at sea level. Reason (R): the velocity of sound depends on the temperature of the surrounding medium.
Options
(a)Both A and R are individually true and R is the correct explanation of A.
(b)Both A and R are individually true but R is not the correct explanation of A.
(c)A is True but R is false
(d)A is false but R is true
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