(i) Identify the part of the electromagnetic spectrum which is:
(a) suitable for radar system used in aircraft navigation,
(b) produced by bombarding a metal target by high speed electrons.
(ii)Why does a galvanometer show a momentary deflection at the time of charging or discharging a capacitor ? Write the necessary expression to explain this observation. [O.D. I, II, III2016]
(i) (a) Microwaves have their wavelength in the range ${{10}^{-2}}$m, are used in RADAR communication,
(b) X-rays.
(ii) Charging of a capacitor is governed by
Therefore initially there will be some flow of charge through the wire, hence the deflection in the galvanometer
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