17. A stick of 1 m is moving with velocity of 2.7 x 10 ^ 8 ms ^-1 . What is the apparent length of the stick (c = 3 x 10 ^ 8 ms ^-1)
(a) 10 m (b) 0.22 m
(c) 0.44 m (d) 2.4 m
Ans. c
(16)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)