Which one of the following is a non-dimensional quantity?
A). Gas constant
B). Strain
C). Co-efficient of viscocity
D). Plank's constant
Strain
Strain is a non-dimensional quantity.
1. The passage of an electric current through a conducting liquid causes ___________.
3. Conversion of heat into electrical energy is achieved by using :
4. The mass of proton and mass of ________ is same.
5. Which of the following events occurred first ?
6. A single fixed pulley is used to draw water from a well because
9. After long periods of use, a grey spot develops on the inside of a bulb. This is because