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Physics · 2023 · 2 marks
CBSE 2023 · Region 5 · Set 3 · Q21
How are electromagnetic waves produced? Write their two characteristics.
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
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