## Units and Measurement Questions and Answers Part-12

1. Dimensional formula for latent heat is
a) $M^{0}L^{2}T^{-2}$
b) $MLT^{-2}$
c) $ML^{2}T^{-2}$
d) $ML^{2}T^{-1}$

Explanation:

2. Dimensional formula for volume elasticity is
a) $M^{1}L^{-2}T^{-2}$
b) $M^{1}L^{-3}T^{-2}$
c) $M^{1}L^{2}T^{-2}$
d) $M^{1}L^{-1}T^{-2}$

Explanation:

3. The dimensional formula of angular velocity is
a) $MLT^{-1}$
b) $M^{0}L^{0}T^{-1}$
c) $M^{0}L^{0}T^{1}$
d) $ML^{0}T^{-2}$

Explanation:

4. The dimensions of power are
a) $M^{1}L^{2}T^{-3}$
b) $M^{2}L^{1}T^{-2}$
c) $M^{1}L^{2}T^{-1}$
d) $M^{1}L^{1}T^{-2}$

Explanation:

5. The dimensions of couple are
a) $ML^{2}T^{-2}$
b) $MLT^{-2}$
c) $ML^{-1}T^{-3}$
d) $ML^{-2}T^{-2}$

Explanation: Couple = Force * Arm length = [MLT-2][L] = [ML2T-2]

6. Dimensional formula for angular momentum is
a) $ML^{2}T^{-2}$
b) $ML^{2}T^{-1}$
c) $MLT^{-1}$
d) $M^{0}L^{-2}T^{-2}$

Explanation:

7. The dimensional formula for impulse is
a) $MLT^{-2}$
b) $MLT^{-1}$
c) $ML^{-2}T^{-1}$
d) $M^{-2}LT^{-1}$

Explanation:

8. The dimensional formula for the modulus of rigidity is
a) $M^{2}LT^{-2}$
b) $ML^{-1}T^{-3}$
c) $ML^{-2}T^{-2}$
d) $ML^{-1}T^{-2}$

Explanation:

9. The dimensional formula for r.m.s (root mean square) velocity is
a) $M^{0}LT^{-1}$
b) $M^{0}L^{0}T^{-2}$
c) $M^{0}L^{0}T^{-1}$
d) $MLT^{-3}$

Explanation: $M^{0}LT^{-1}$
a) $ML^{-2}T^{-3}$
b) $ML^{2}T^{-2}$
c) $ML^{2}T^{-1}$
d) $ML^{-2}T^{-2}$