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प्रश्न
Write the approximate wavelength for red light.
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उत्तर
For red light, approximate wavelength = 8000 Å.
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संबंधित प्रश्न
How does the deviation produced by a triangular prism depend on the colours (or wavelengths) of light incident on it?
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(ii) Draw another diagram to show how the colours of spectrum of white light can be combined
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