18. 1 joule of energy is to be converted into new system of units in which length is measured in 10 metre, mass in 10 kg and time in 1 minute. The numerical value of 1 J in the new system is(1) 36 x 10-4 (2) 36 x 10-2 (3) 36 x 10-3 (4)36×10-

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