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प्रश्न
A ray of white light is passed through a glass prism and a spectrum is obtained on a screen.
- Name the seven colours of the spectrum in order.
- Do the colours have the same width in the spectrum?
- Which of the colour of the spectrum of white light deviates (i) the most, (ii) the least?
उत्तर
- Violet, Indigo, Blue, Green, Yellow, Orange, and Red.
- No, different colours have different widths in the spectrum.
-
- The violet colour deviates the most.
- The red colour deviates the least.
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संबंधित प्रश्न
After tracing the path of a ray of light through a glass prism a student marked the angle of incidence (∠i), angle of refraction (∠r) angle of emergence (∠e) and the angle of deviation (∠D) as shown in the diagram. The correctly marked angles are :
(A) ∠i and ∠r
(B) ∠i and ∠e
(C) ∠i, ∠e and ∠D
(D) ∠i, ∠r and ∠e
Draw a ray diagram to explain the term angle of deviation.
What will happen if another similar glass prism is placed upside down behind the first prism?
Define the term dispersion of light.
While performing the experiment to trace the path of a ray of light passing through a glass prism, four students marked the incident ray and the emergent ray in their diagrams in the manner shown below. 
(A) I
(B) II
(C) III
(D) IV
If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
What do you understand by spectrum? Name the seven prominent colours in order, as obtained in the spectrum of white light.
Draw a neat and labelled diagram for dispersion of light.
The splitting of white light in to seven colors is called ______.
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
