Unit of stress is:
1. \(\frac{\text{N}}{\text{m}}\)
2. \(\text{N-m}\)
3. \(\frac{\text{N}}{\text{m}^2}\)
4. \(\text{N-m}^2\)
Curie is a unit of
1. Energy of -rays
2. Half life
3. Radioactivity
4. Intensity of -rays
Hertz is the unit of
1. Frequency
2. Force
3. Electric charge
4. Magnetic flux
In SI, Henry is the unit of
1. Self inductance
2. Mutual inductance
3. (1) and (2) both
4. None of the above
The unit of is
1. Joule
2. Joule-Coulomb
3. Volt–Coulomb
4. Joule/Coulomb
Unit of self inductance is [This question includes concepts from 12th syllabus]
1.
2.
3.
4.
To determine Young's modulus of a wire, the formula is where L = length, A = area of cross-section of the wire, change in length of the wire when stretched with a force F. The conversion factor to change it from CGS to MKS system is
1. 1
2. 10
3. 0.1
4. 0.01
Young's modulus of a material has the same units as
1. Pressure
2. Strain
3. Compressibility
4. Force