Question

1. State true or false:

i. Two or more physical quantities are added or subtracted when their dimensions are same.

ii. If A + B = C – D, then dimensions of A = dimensions of B = dimensions of C = dimensions of D.

iii. Supplementary units have no dimension.

iv. A physical quantity having unit must have dimensions.

v. A unit less quantity is dimensionless.

vi. Velocity and speed have same dimensions.

vii. The dimensions of latent heat are [M0

L

2

T

-2

].​

Answer 1

Answer:

Explanation:1

1 true

2 true

3 false

4 true

5 true

Answer 2

Answer:

1) True

2) True

3) True

4) False

5) True

6) True

7) True