CBSE 2023 · Region 5 · Set 3 · Q21 · 2 marks
How are electromagnetic waves produced ? Write their two characteristics.
Marking-scheme solution
Methods to produce Electromagnetic wave
(1)
Two characteristics
( \(\displaystyle \frac{1}{2}+\frac{1}{2}\) )
1. Charged particle moving with varying speed.
2. Oscillating charge
3. By using LC circuit
Characteristics of em waves
(1)
Travel with speed of light in vacuum
(2)
Transverse in nature
(3)
No medium required for propagation
(4)
Can be polarized
(5)
Exert pressure
Electromagnetic WavesUnderstandvery_short_answereasy
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.