Take a steel tiffin box and open it. Place a mobile phone in it. Make a call to this phone from another phone. Now, close the tiffin box along with the mobile using the lid. Again make a call to the mobile phone in the tiffin box. What do you observe ? What is this phenomenon ? Explain.
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Answer:
What do you observe?
The phone kept inside the tiffin box is reported as 'Out of reach.'
Explanation:
This phenomenon is shielding of electromagnetic waves by metal shields also known as Faraday shielding.
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