Question

if the units of M and L are increased three times then the unit of energy will be increased by
3times
6times
27times
81times

Answer 1

"The dimensional formula for energy in terms of Mass, length and Time can be expressed as, [ML2T-2]

Where [ML2T-2] can also be rewritten as, [M] [L]2[1/T]2,

According to the question, If the corresponding parameters are increased by 3 times i.e. 3M and 3L

Then the unit of energy will be 3[M]  x [3L]2  [1/T]2 = 27 x [M] [L]2[1/T]2

Hence the unit of energy will be increased to 27 times "

Answer 2

Here is ur answer.......