Mohus scale is used for to measure ____________?
Mohus scale is used for to measure ____________? A. Hardness B. Humidity C. Pressure D. Temperature
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Mohus scale is used for to measure ____________? A. Hardness B. Humidity C. Pressure D. Temperature
The unit of force in CGS, system is __________? A. Newton B. PoundC. Dyne D. None of these
Matter itself has energy called ________? A. Potential energyB. Rest energy C. Chemical energy D. Nuclear energy
Kirchhoff’s 2nd rule is related to: ___________? A. IR Drops B. Battery emf C. junction voltagesD. both “1” and “2”
The power is the dot product of ___________ quantities. A. Force and timeB. Force and velocity C. Force and speed D. None of these
CGS system of units is also called __________? A. Metric systemB. Metric or French system of units C. Metric or British system of units D. None of these
A person wears spectates with concave lenses. It means that normally (when not using glasses), the image of distant objects is focused in his eyes: A. behind the retinaB. in front of the retina C. on the retina D. on the blind spot
A bird sitting on a high tension electric wire does not get electrocuted because: A. Sit has high resistance B. the body is earthedC. it does not form a closed path for the flow of current D. its feet are good insulators
Rainbow is seen after rain because of hanging molecules of water which act as __________? A. Lens B. PrismC. Mirror D. Slabs
To measure the speed of an approaching car a police officer shines? A. light waves on it B. microwaves on itC. radio waves on it D. ultra high frequency waves on it