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प्रश्न
Out of the following, the colour of light having the maximum wavelength is:
(a) violet
(b) indigo
(c) green
(d) orange
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उत्तर
orange
Of the given colours of light, orange has the maximum wavelength.
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संबंधित प्रश्न
A student traces the path of a ray of light through a triangular glass prism for different values of angle of incidence. On analyzing the ray diagrams, which one of the following conclusions is he likely to draw?
(A) The emergent ray is parallel to the incident ray.
(B) The emergent ray bends at an angle to the direction of the incident ray.
(C) The emergent ray and the refracted ray are at right angles to each other.
(D) The emergent ray is perpendicular to the incident ray.
Draw a ray diagram to explain the term angle of deviation.
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
Make two diagrams to explain refraction and dispersion.
How could you show that the colours of the spectrum combine to give white light?
Which is refracted most by a prism : red light or violet light? Explain why?
Name the process which is involved in the formation of a rainbow.
What are the seven colours seen in a rainbow?
The property of splitting of white light into its seven constituent colours is known as
Explain the cause of dispersion of white light through a prism.
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?
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
The splitting of white light in to seven colors is called ______.
Say TRUE or FALSE
Rainbow is formed by dispersion of which light by water drops
Name the scientist who was the first to use a glass prism to obtain the spectrum of sunlight.
Which one of the following is involved for the formation of rainbow in the sky?
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
State True or False:
"Wavelength of red light is close to 700 nm.”
