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JEE Main Electromagnetic Waves Revision Notes

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JEE Main Electromagnetic Waves Revision Notes - PDF Download

The synchronized oscillations of electric and magnetic fields are known as electromagnetic waves, that propagate at the speed of light through vacuum. The oscillations of the two fields are perpendicular to the direction of energy and wave propagation and perpendicular to each other, forming a transverse wave.

JEE Main Electromagnetic Waves Revision Notes part-1
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FAQ (Frequently Asked Questions)

Q1. How can one Block Electromagnetic Waves?

Ans: The process of lowering the electromagnetic field in an area by barricading it by magnetic or conductive material is known as electromagnetic shielding. For radio-frequency copper is used RF shielding because it absorbs radio and other electromagnetic waves.

Q2. What are the Ways to Neutralize the Electromagnetic Waves?

Ans: The ways to neutralize the electromagnetic waves are:

  • Wireless function disabled, (wireless devices include printers, tablets, and laptops).

  • Replacing wireless with wired devices,

  • Keeping emf force into a distance.

Q3. How is Information Carried out by Electromagnetic Waves?

Ans: A carrier wave transmitter sends out signals, for example, sine wave. This carrier wave is tuned by and listens to it. The carrier wave is modulated by the transmitter waves that means according to the information it wants to send it changes the property. For example, digital information is a combination of 0 and 1.

Q4. Can the Brain get Affected by the Electromagnetic Waves?

Ans: A study has recently been put forward which suggests that due to radioactive substances the brain gets affected and the body's metabolism is affected too.

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