When wave is reflected from denser medium to rare medium then there is phase change of:
Correct answer: C. π
- A. π/4
- B. π/2
- C. π
- D. 2π
Explanation
When a wave is reflected from a denser medium to a rarer medium, there is a phase change of 0° or no phase change (or 360°).But if it was reflected from a rarer medium to a denser medium, the phase change would be 180°.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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