STANDARD Physics Properties of Electromagnetic Waves MCQ Question
Which of the following is not true for electromagnetic waves?
They transport energy.
They have momentum.
They travel at different speeds in air depending on their frequency.
They travel at different speeds in medium depending on their frequency.
Correct Answer
Detailed Explanation
Electromagnetic waves travel at the speed of light in a vacuum and at a constant speed in air, regardless of frequency. The statement that they travel at different speeds in air depending on their frequency is incorrect.
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