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प्रश्न
Draw a neat diagram to show the arrangement you would use to project a pure spectrum of white light on a screen.
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उत्तर
The diagram is shown below:
संबंधित प्रश्न
Why is the colour red used as a sign of danger?
How does the deviation produced by a triangular prism depend on the colours (or wavelengths) of light incident on it?
In following diagram shows a thin beam of white light from a source S striking on one face of a prism.
What conclusion do you draw from the observation in part (b) above?
Draw another diagram to show how the colours of spectrum of white light can be combined to give the effect of white light.
Light of different colours is deviated through different angles by a prism. Explain the reason.
What is understood by the term dispersion of light? What is its cause?
Name the radiation of a wavelength longer than 8 × 10−7 m.
Write the approximate wavelength for red light.
