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प्रश्न
What do you understand by the term spectrum?
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उत्तर
The colour band obtained on a screen on passing white light through a prism is called the spectrum.
संबंधित प्रश्न
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
In the following diagram the correctly marked angles are :
(a) ∠A and ∠e
(b) ∠i, ∠A and ∠D
(c) ∠A ∠r and ∠e
(b) ∠A ∠r and ∠D
As light rays pass from air into a glass prism, are they refracted towards or away from the normal?
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
The colour of white light which is deviated the maximum on passing through the glass prism is:
(a) blue
(b) indigo
(c) red
(d) orange
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
In which of the following four diagrams is the correct path of a ray of light passing through a glass prism shown ?
Answer the following:
What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in the following figure.
