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प्रश्न
Write the range of wavelength of the visible spectrum.
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उत्तर
The wavelength range for the visible spectrum is from 4000 Å to 7900 Å.
संबंधित प्रश्न
A narrow beam PQ of white light is passing through a glass prism ABC as shown in the diagram.
Trace it on your answer sheet and show the path of the emergent beam as observed on the screen DE.
(i) Write the name and cause of the phenomenon observed.
(ii) Where else in nature is this phenomenon observed?
(iii) Based on this observation, state the conclusion which can be drawn about the constituents of white light.
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.
Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
What happens when a ray of ordinary light is passed through a triangular glass prism?
Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.
The property of splitting of white light into its seven constituent colours is known as
Differentiate between a glass slab and a glass prism.
Which characteristic property of light is responsible for the blue colour of the sky?
The phenomena of light involved in the formation of rainbow are ______.
Curved mirrors have surfaces that are spherical, cylindrical, parabolic, and ellipsoid.
