32. In a capillary tube experiment, a vertical 30 cm long capillary tube is dipped in water. The water rises up to a height of 10cm due to capillary action. If this experiment is conducted in a freely falling elevator, the length of the water column becomes
(a) 10 cm
(b) 20 cm
(c) 30 cm
(d) Zero
Ans. c
(4)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)