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There are two parts of Thermionic emitters:- A) Directly heated emitter (i) Cathode is directly heated by passing current. (ii) Thermionic current is less. (iii) Ener
Does a piece of glass reflect more light than a piece of paper?
(i) Electric field lines come out of positive charge and go into the negative charge. (ii) Tangent to the field line at any point gives the direction of the field at that point.
Kelvin : Kelvin is the fundamental unit of temperature. It has quantity of zero where the molecular activity of gases ceases. Mole : Mole is the fundamental unit of quantity of
Explain Newtons First Law An object will remain at rest or move with constant velocity until acted upon by a net external force. (A non-accelerating reference frame is known
Explain the Conservation of Momentum In a collision, energy is not all time conserved, if not the collision is totally elastic (all stored energy is turned into kinetic energy
#question.introduction .
Q What is photoelectric effect? Photoelectric release is the phenomena by which a good number of substances chiefly metals emit electrons under the influence of radiation such
What is an effect wheel? A disc of polycarbonate or metal revolving among the lamp and the common end along with holes, slits, patterns or colors.
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