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A. Has motionless points that are closer than half a wavelength
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B. None of these
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C. Can be constructed from two similar waves travelling in opposite directions
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D. Must be transverse
Explanation
- A standing wave is formed by the interference of two waves with the same frequency and amplitude moving in opposite directions.
- This results in nodes (motionless points) and antinodes (points of maximum displacement) at fixed positions.
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A. Velocity of the waves
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B. Frequency of waves
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C. Wavelength of the waves
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D. Nature of the waves
Explanation
The number of loops in stationary waves depends on the wavelength of the waves.
A longer wavelength means fewer loops fit within a given length, and vice versa, so the number of loops is directly related to the wavelength.
کھڑی لہریں ______ سے گزرتی ہیں؟
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A. Refraction
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B. Reflection
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C. Interference
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D. None of these
Explanation
- Standing waves are formed due to the interference of two waves traveling in opposite directions.
- This interference results in nodes (no displacement) and antinodes (maximum displacement).
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