

MCQOPTIONS
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1. |
A body of mass 5 kg falls from a height of 30 metre. If its all mechanical energy is changed into heat, then heat produced will be [CPMT 1975] |
A. | 350 cal |
B. | 150 cal |
C. | Radiation |
D. | 6 cal |
Answer» B. 150 cal | |