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HomePhysics17. 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)

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

(17)

5/5 - (4 votes)

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12. An ideal gas is taken through the cycle A→ B → C → A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C → A is

(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (126)

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