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प्रश्न
The wavelength range of white light is ______.
विकल्प
4000 nm to 8000 nm
40 nm to 80 nm
400 nm to 800 nm
4 nm to 8 nm
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उत्तर
The wavelength range of white light is 400 nm to 800 nm.
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संबंधित प्रश्न
State the cause of dispersion of white light passing through a glass prism. How did Newton show that white light of sun contains seven colours using two identical glass prisms. Draw a ray diagram to show the path of light when two identical glass prisms are arranged together in inverted position with respect to each other and a narrow beam of white light is allowed to fall obliquely on one of the focus of the first prism.
A ray of light moving from an optically rarer to a denser medium
In an experiment to trace the path of a ray of light through a glass prism for different values of angle of incidence a student would find that the emergent ray:
(A) is parallel to the incident ray
(B) perpendicular to the incident ray
(C) is parallel to the refracted ray
(D) bends at an angle to the direction of incident ray
A glass prism is able to produce the spectrum when white light passes through it, but a glass slab doesn’t produce any spectrum. Explain why it is so.
Answer the following:
What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.
The process of separation of light into its component colours while passing through a medium is called _______.
Draw a neat and labelled diagram for dispersion of light.
What is dispersion? Explain in detail.
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
The splitting of white light into its component colours is called ____________.
