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More Physics Questions
Sound waves with frequency below the audible range are called-
Consider the following sentences. 1. The phenomenon of emission of electrons from metals under the effect of light rays is called photoelectric effect. 2. The electron emitted by the photoelectron effect are called proton. 3. The phenomena like interference diffraction and polarisation were explained successfully on the basis of wave nature of radiation. Which of the above sentence/sentences is/are correct?
When the object is placed at . . . . . . . ., no image will form in the converging lens?
The most useful tracer is_________________?
The density of water is 1 g./cc. This is strictly valid at