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(i) Identify the part of electromagnetic spectrum used in (a) radar and (b) eye surgery. Write their frequency range.

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(i) Identify the part of electromagnetic spectrum used in (a) radar and (b) eye surgery. Write their frequency range.

(ii) Prove that average current density of the oscillating electric field is equal to that of oscillating magnetic field.

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(i) Microwaves : Frequency range (1010 to 1012 Hz)

Ultraviolet rays : Frequency range (1015 to 1017 Hz)

(ii) Average density of the electric field is

Average density of the electric field is

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