Physical Quantities

Q.

Does momentum have a direction? If yes, how is it specified? Name two factors on which change of momentum depends.

Q.

State whether given statement is true or false.

Linear momentum is always in the direction of velocity.

1. True
2. False

Q. Dimensional formula $M{L}^{-1}{T}^{-2}$ does not represent the physical quantity

1. Strain
2. Stress
3. Young's modulus of elasticity
4. Pressure

Q. ntShow that 10, 11, 12 cannt be terms of a G.p ?n

Q. SI unit of permittivity $\left(ϵ\right)$ is….. (if Coulomb (C), Meter (m) and Force (N) are fundamental Quantities

1. C^-1m² N^-2
2. C²m² N²
3. C²m^-2 N^-1
4. C²m^-3 N^-1

Q. Select the pair whose dimensions are same

1. Pressure and stress
2. Stress and strain
3. Pressure and force
4. Power and force

Q.

does the value of universal gravitational constant change from planet to planet or it remains same?

Q. The SI unit of universal gas constant (R) is

1. Newton K^-1 mol^-1
2. Joule K^-1 mol^-1
3. Erg K^-1 mol^-1
4. Watt K^-1 mol^-1

Q. Which is same fir all bodies . G or g?

Q.

S.I. unit of gravitational intensity and which letter denotes it?