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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
In the following diagram, the path of a ray of light passing through a glass prism is shown:
In this diagram the angle of incidence, the angle of emergence and the angle of deviation respectively are (select the correct option):
(A) X, R and T
(B) Y, Q and T
(C) X, Q and P
(D) Y, Q and P
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
- State the colour seen
- at X, and
- at Y.
- Why do different colours of white light bend through different angles with respect to the incident beam of light?
The splitting up of white light into seven colours on passing through a glass prism is called ______.
Explain the cause of dispersion of white light through a prism.
What conclusion do you draw about the nature of white light in part (b)?
What do you understand by the term spectrum?
When we place a glass prism in the path of a narrow beam of white light a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled ray diagram to illustrate it.
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
Distinguish between an impure spectrum and a pure spectrum.
The phenomena of light involved in the formation of rainbow are ______.
