JEE Mains · Physics · STD 12 - 8. Electromagnetic waves
Given below are two statements:
Statement \(I\): Electromagnetic waves carry energy as they travel through space and this energy is equally shared by the electric and magnetic fields.
Statement \(II\): When electromagnetic waves strike a surface, a pressure is exerted on the surface.
In the light of the above statements, choose the most appropriate answer from the options given below:
- A Statement \(I\) is incorrect but Statement \(II\) is correct
- B Both Statement \(I\) and Statement \(II\) are correct.
- C Both Statement \(I\) and Statement \(II\) are incorrect.
- D Statement \(I\) is correct but Statement \(II\) is incorrect.
Answer & Solution
Correct Answer
(B) Both Statement \(I\) and Statement \(II\) are correct.
Step-by-step Solution
Detailed explanation
\(\frac{1}{2} \varepsilon_0 \mathrm{E}^2=\frac{\mathrm{B}^2}{2 \mu_0}\) \(\because \mathrm{E}=\mathrm{CB} \text { and } \mathrm{C}=\frac{1}{\mu_0 \varepsilon_0}\)
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