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Refracting telescopes, if uncorrected, suffer from chromatic aberration.
Chromatic aberration occurs because:
a) red light is focused more strongly than blue light
b) blue light is focused more strongly than red light
c) the outer light rays are focused more strongly than the central rays,
d) the central light rays are focused more strongly than the outer rays.
Ans- Blue light is focused more strongly than red light
Magnetic lines of flux A line of flux is a line indicating the direction in which a free north pole would travel, if placed in the field at that point. Alternatively it
how to solve it
It is the electric dipole moment induced in a system, such as an atom or molecule, by an electric field of unit strength.
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