Explain the difference between a lens and a mirror?
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The velocity of sound in gas depends upon what?
Explain the Use of manometer.
According to coulombs law, if two charged particles are repelled with a given force at a distance d, by what multiple will the force decrease by if d is increased by 4times?
why the air temperature drops more on clear nights than on cloudy nights?
Is it possible to convert a heat energy into magnetic energy?
What is meant by normal modes?
I’ve heard that in quantum physics a lot of fancy mathematical objects like hilbert spaces are used, and that in particular, measurable quantities are described by self-adjoint operators. Are these things related to what you have just explained? : quantum physics
What do you mean by diffraction and what is/are the proper condition/conditions for it?
Which is the sound wave that is below the human hearing?
Explain how does the elevation and air pressure affect the boiling point of water?
Define Mass?
Explain the advantage of fixed pulley?