Light is:

1. a wave phenomenon
2. a particle phenomenon
3. both particle and wave phenomenon
4. none of the above
Subtopic:  Diffraction |
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The amplitude modulated (AM) radio wave bends appreciably round the corners of a 1m × 1m board but the frequency modulated (FM) wave only negligibly bends. If the average wavelengths of AM and FM waves are \(\lambda_a\) and \(\lambda_f\),

1. \(\lambda_a\) > \(\lambda_f\)

2. \(\lambda_a\) = \(\lambda_f\)

3. \(\lambda_a\) < \(\lambda_f\)

4. we don't have sufficient information to decide about the relation of \(\lambda_a\) and \(\lambda_f\)

Subtopic:  Diffraction |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology