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1. (a) Which quantity associated with light wave sets the limit of ability to distinguish very
close objects?
(b) What is attenuation of signal in communication system?
(c) ICs can be grouped in two categories. What are they?
(d) What is impact parameter?
(e) Which layer in our atmosphere protects us from ultra violet rays?
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(f) What is Current Sensitivity of a galvanometer?
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(g) Which experiment established the fact that electric charge is quantized?
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(h) How are eddy currents minimised in a transformer?
2. (a) Give the statement of Coulomb's law for the force between two point charges. Write this
law in vector notation for two point charges of same magnitude and opposite sign separated
by a distance r in vacuum.
1+1=2​

Answer 1

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