Units and Measurements Part 1

As we know that,
The dimensional formula of following terms are
(a) [ Torque ] = [ Radius ] × [ Force ]
=[M0LT0][MLT−2]=[ML2T−2]
(b) [Impulse] = [Force] [Time]
=[MLT−2][T]=[MLT−1]
(c) [ Tension ] = [ Force ]=[MLT−2]
(d) [Surface tension] =

[Force]

[Length]

=

[ML‌L−2]

[L]

=[MT−2]
Hence, option (a) is the correct.