Tag: ENGINEERING PHYSICS
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INTERFERENCE OF LIGHT/PHYSICS
INTERFERENCE OF LIGHT: The phenomenon by which intensity is redistributed when two light waves from two coherent sources superpose each other. *INTERFERENCE OF LIGHT is an example for the Wave nature of light. *CONSTRUCTIVE : When the two waves are in phase. *DESTRUCTIVE: When the to waves are out of phase. COHERENT SOURCES: S1 and…
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PHOTOELECTRIC EFFECT
The peculiarity by which electrons are transmitted from a metal surface, when adequately high frequency electromagnetic radiations are permitted to incident on it. MAIN PARTS: Vacuum tube transparent to ultraviolet light. PHOTONS: Light beam is a discrete energy packets. PHOTOELECTRIC EFFECT:- EXPLANATION # Photoelectric effect is the consequence of connection of two particles. One is…
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NEET PHYSICS-QUESTION ANSWER & SOLUTION (7)
QUESTION-1 The wave nature of electrons was experimentally verified by [A] Hertz [B] Einstein [C] Davisson and Germer [D] de Broglie ANSWER : ANSWER:[C] SOLUTION: From de Broglie hypothesis,the wavelength associated with an electron beam accelerated through 54 V should be 1.66 X 10-10 m. The tentatively estimated wavelength is near that assessed…
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Lenz’s Law and Induced Current in Magnetic Fields
FARADAY’S SECOND LAW : Second law is about the quantity of emf produced in the coil. Faraday’s second law of electromagnetic induction states that the magnitude of induced emf is equal to the rate of change of magnetic flux linked with the coil. LENZ’S LAW : The current induced in a loop flows in such…
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