Physics
Which of the following forces cannot create a moment of force?
- Action-reaction forces
- Gravitational forces
- Electric forces
- Frictional forces
Related Questions
The work done by machine to load luggage in 60s is 1800 J. Calculate the power spent by machine
- 50 W
- 30 W
- 80 W
- 70 W
The number of beta particles emitted by radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter nuclei is as
- isobar of parent
- isomer of parent
- isotone of parent
- isotope of parent
A ray of light incident at an angle of 48° on a prism of refracting angle 60°, suffers minimum deviation. The angle of minimum deviation would be
- 12°
- 24°
- 36°
- 48°
Assertion Bending of wire does not affect electrical resistance.
Reason Resistance of a wire is proportional to resistivity of material.
- Both Assertion and Reason are true
- Both Assertion and Reason are false
- Assertion is false but Reason is true.
- Assertion is true but Reason is false