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प्रश्न
Say TRUE or FALSE
After passing through a prism, white light splits into a band of seven colours
पर्याय
True
False
उत्तर
After passing through a prism, white light splits into a band of seven colours- True
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संबंधित प्रश्न
State the cause of dispersion of white light
Make two diagrams to explain refraction and dispersion.
Which of the following coloured light has the least speed in glass prism?
(a) violet
(b) yellow
(c) red
(d) green
A ray of light moving from an optically rarer to a denser medium
The property of splitting of white light into its seven constituent colours is known as
You are given a disc divided into seven sectors with colours violet, indigo, blue, green, yellow, orange and red in them. What would be its colour when it is rotated rapidly?
State two properties of ultra-violet radiations which differ from visible light.
What is dispersion? Explain in detail.
The angle of deviation through a prism is minimum when
- Incident rays and emergent rays are symmetric to the prism.
- The refracted ray inside the prism becomes parallel to its base.
- The angle of incidence is equal to that of the angle of emergence.
- When the angle of emergence has doubled the angle of incidence.
Choose the correct answer from the options given below:
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
