One femtometer is equivalent to

1. ${10}^{15}m$

2. ${10}^{-15}m$

3. ${10}^{-12}m$

4. ${10}^{12}m$

How many wavelengths of $K{r}^{86}$ are there in one metre

1. 1553164.13

2. 1650763.73

3. 652189.63

4. 2348123.73

Which of the following pairs is wrong?

1. Pressure-Baromter

2. Relative density-Pyrometer

3. Temperature-Thermometer

4. Earthquake-Seismograph

Select the pair whose dimensions are the same:
1. strain and angle
2. Stress and strain
3. Pressure and force
4. Power and force

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

1. Young's modulus of elasticity

2. Stress

3. Strain

4. Pressure

Dimensional formula $M{L}^2{T}^{-3}$ represents

1. Force

2 Power

3. Energy

4. Work

Whose dimensions are $M{L}^2{T}^{-1}$?

1. Torque

2. Angular momentum

3. Power

4. Work

Which pair has the same dimensions?

1. Work and power

2. Density and relative density

3. Momentum and impulse

4. Stress and strain

Dimensions of one or more pairs are same. Identify the pairs

1. Torque and work

2. Angular momentum and work

3. Energy and Young's modulus

4. Year and wavelength

Dimensional formula for volume elasticity is

1. $M^1{L}^{-2}{T}^{-2}$

2. $M^1{L}^{-3}{T}^{-2}$

3. $M^1{L}^2{T}^{-2}$

4. $M^1{L}^{-1}{T}^{-2}$