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प्रश्न
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
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उत्तर
yellow
Yellow is the coloured light with the maximum speed in a glass prism as it has the greatest wavelength.
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संबंधित प्रश्न
In the following diagram, the path of a ray of light passing through a glass prism is shown:
In this diagram the angle of incidence, the angle of emergence and the angle of deviation respectively are (select the correct option):
(A) X, R and T
(B) Y, Q and T
(C) X, Q and P
(D) Y, Q and P
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
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 splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
Which of the following coloured light has the least speed in glass prism?
(a) violet
(b) yellow
(c) red
(d) green
Out of the following, the colour of light having the maximum wavelength is:
(a) violet
(b) indigo
(c) green
(d) orange
In which of the following four diagrams is the correct path of a ray of light passing through a glass prism shown ?
State two properties of ultra-violet radiations which differ from visible light.
State two uses of ultraviolet radiation.
Distinguish between an impure spectrum and a pure spectrum.
Write the range of wavelength of the ultraviolet spectrum.
In the diagram, a narrow beam of white light is incident on a right-angled isosceles prism. The critical angle of the material of prism for the yellow colour of white light is 45°. Complete the diagram to show the path of blue, yellow, and red colours of white light till they emerge out of the prism.
Observe the given figure and write appropriate phenomenon of light in the box.
The phenomena of light involved in the formation of rainbow are ______.
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in the following figure.
The periscope is an optical device with a polished surface that reflects the light falling on it.
During dispersion of white light by prism placed in air, for a particular value of angle of prism,
