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प्रश्न
In the formation of spectrum of white light by a prism:
- which colour is deviated least?
- which colour is deviated most?
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उत्तर
- Red
- Violet
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संबंधित प्रश्न
Draw a ray diagram to explain the term angle of deviation.
Study the following ray diagram:
In this diagram, the angle of incidence, the angle of emergence and the angle of deviation respectively have been represented by
(A) y, p, z
(B) x, q, z
(C) p, y, z
(D) p, z, y
What happens when a ray of ordinary light is passed through a triangular glass prism?
What is spectrum?
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.
Why do different colours of white light bend through different angles with respect to the incident beam of light?
The property of splitting of white light into its seven constituent colours is known as
Which is optically denser: water or air? Give reason
Explain the cause of dispersion of white light through a prism.
What do you understand by the term spectrum?
The frequency range of visible light is from 3.75 × 1014 Hz to 7.5 × 1014 Hz. Calculate its wavelength range. Take speed of light = 3 × 108 m/s.
In the following diagram, the correctly marked angles are
(A) All
(B) Only ∠i and ∠A
(C) ∠i, ∠r and ∠A
(D) ∠i, ∠A and ∠D
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
Match the Columns:
| Column ‘A’ | Column ‘B’ |
| The wavelength of red light | (a) 600 nm |
| (b) 700 nm | |
| (c) 500 nm |
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?
In dispersion, the color of light that will bend more is ______.
State the colour which bends:
- The most.
- The least while passing through a glass prism.
