501: Assertion (A) : A jet aircraft moving at Mach Number equal to 1 travels faster at an altitude of 15 km than while moving at mach number equal to 1 near the sea level.
Reason (R) : the velocity of sound depends on the temperature of the surrounding medium.
(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
502: Match List I with List II and select the correct answer using the codes given below the Lists:
List I--------------------------------------------------List II
I. Development Programme-----------------------------(A) UN India Human Development Report
II. National Council of Applied Economic Research--------(B) India Development Report
III. Indira Gandhi Institute of Development Research-----(C) World Development Report
IV. World Bank-----------------------------------------(D) Human Development Report
Codes:
(a) I-D, II-A, III-B, IV-C
(b) I-D, II-B, III-A, IV-C
(c) I-B, II-C, III-D, IV-A
(d) I-B, II-A, III-D, IV-C