When you walk |PRACTICAL ORGANIC CHEMISTRY| JEE-MAIN 2022

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JEE-MAIN 2022

25-07-2022 S2

Question

When you walk through a metal detector carrying a metal object in your pocket, it raises an alarm. This phenomenon works on

Select the correct option:

A

Electromagnetic induction

B

Resonance in ac circuits

C

Mutual induction in ac circuits

D

interference of electromagnetic waves

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Metal detector works on the principle of transmitting an electromagnetic signal and analyses a return signal from the target. So it works on the principle of resonance in AC circuit.

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