71.

Minimum number of unequal vectors which can give zero resultant are
A. two B. three
C. four D. more than four
Answer and Explanation
Answer:B
Explanation: No answer description available for this question.
72.

Intensity of sound has
A. an object existence B. a subject existence
C. no existence D. both subjective and objective existence
Answer and Explanation
Answer:A
Explanation: No answer description available for this question.
73.

Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from
A. east B. west
C. northeast D. southeast
Answer and Explanation
Answer:A
Explanation: No answer description available for this question.
74.

An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is
A. 1200 m B. 0.33 km
C. 3.33 km D. 33 km
Answer and Explanation
Answer:C
Explanation: No answer description available for this question.