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प्रश्न
Which of the following colour of white light is least deviated by the prism?
(a) green
(b) violet
(c) indigo
(d) yellow
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उत्तर
Yellow
Yellow is the colour of white light that is the least deviated by a prism because it has the largest wavelength of the colours given in the alternatives.
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संबंधित प्रश्न
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
Draw a ray diagram to show the dispersion of white light.
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
What happens when a ray of ordinary light is passed through a triangular glass prism?
What will happen if another similar glass prism is placed upside down behind the first prism?
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 (i) at X, and (ii) at Y.
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
Define the term dispersion of light.
When a white light ray falls on a prism, the ray at its first surface suffers ______.
Make the correct choice for each of the following:
Which one of the following Fig correctly shows the path of the ray through the glass block?
Answer the following:
What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.
State two properties of ultra-violet radiations which differ from visible light.
Observe the given figure and write appropriate phenomenon of light in the box.
What is dispersion? Explain in detail.
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
The phenomena of light involved in the formation of rainbow are ______.
Why do we see a rainbow in the sky only after rainfall?
A prism of refractive index `sqrt2` and refracting angle A produces minimum deviation δm of a ray on one face at an angle of incidence 45°, The values of A and δm are, respectively ______.
Observe the given diagram and answer the questions:
- Name the process shown in the figure.
- Name the colour that deviates the most.
- Name the colour that deviates the least.
- Name any one phenomenon in nature which is based on the above process.
- Define ‘spectrum’.
