If a body of mass 5 kg is raised to 10 meters height, find its potential energy. (g = 9.8 m/s²)
Which physical quantity has unit “Joule/second”?
Which of the following statement is correct?
I. Magnetite is a natural magnet
II. A freely suspended magnet always aligns in N-S direction
Which conservation law is violated in nuclear beta decay if neutrinos are not considered?
Which phenomenon does a hologram use to create an image?
If mass is doubled and velocity is tripled, how will kinetic energy change?
Two identical spheres with charges +4q and –q are brought into contact and then separated. What is the final force between them if their centers are ...
A positron is an anti-particle of an electron, having the same mass but opposite charge to electron. Then, the minimum energy released in annihilation ...
The group velocity of matter waves associated with a moving particle is:
A body is projected upwards with an initial velocity u . At the highest point, what is its acceleration?
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