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Light is quantized. Photons are light quanta. It has zero REST mass. Therefore, it always travels at maximum speed permitted by relativity
Anode rays were discovered by: (1)Goldstein (b)J. Stoney (3)Rutherford (4)J.J. Thomson Ans: (1)Goldstein
For the square voltage waveform displayed on an oscilloscope shown in Figure, find (a) its frequency, (b) its peak-to-peak voltage.
Q. Define Fermi energy. Write down the expression for Fermi Dirac distribution law. Deduce an expression for Fermi energy of a system of free particles. Sol. The Fermi Energy
Einstein field equation The cornerstone of Einstein's general theory of relativity, relating to the gravitational tensor G to the stress-energy tensor T through the simple equa
What is the name of the temperature and pressure conditions at which water can be in the solid, liquid and gas phases simultaneously? Ans: The name of the temperature and pr
Q. How greatly does sea salt weigh per cubic foot? Answer:- Sodium chloride NaCl weighs 72 lb/ft 3 .
(i) X-rays are electromagnetic waves with wavelength lie among 0.1Å - 100Å. (ii) X-rays is invisible. (iii) They always go in a straight line with speed of light. (iv) X
Doppler Effect Describing the classical Doppler Effect for sound waves. The Doppler Effect is a means through that wave properties (specifically frequencies) are influenced thr
Elevator Problem
compostion of two simple harmonic motion
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