CUET · PHYSICS · PYQ PAPER 2023
Which of the following statements is not true with respect to electromagnetic waves ?
- A They can be polarised
- B They carry energy and momentum
- C They travel with speed given by \(v = \sqrt{\mu_0\epsilon_0}\) in vacuum
- D They do not require material medium to propagate
Answer & Solution
Correct Answer
(C) They travel with speed given by \(v = \sqrt{\mu_0\epsilon_0}\) in vacuum
Step-by-step Solution
Detailed explanation
The incorrect statement is Option C. The speed of electromagnetic waves in a vacuum is actually given by the reciprocal formula \(v=\frac{1}{\sqrt{\mu_0 \varepsilon_0}}\), which equates to the speed of light. They travel with speed given by \(v=\sqrt{\mu_0 \epsilon_0}\) in vacuum
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