Question

which of the following NDT an S.I. unit
a) the joule
b) the erg
c) the kilometers
d) both b and c​

Answer 1

Answer:

Option B and C is correct.

Joules is Si unit (MKS unit) which expressed using metre, kilograms, second and some other units.

while erg is CGS and Kilometres is also another unit.

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