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प्रश्न
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
विकल्प
towards the normal, while entering the prism and away from the normal while emerging from the prism
away from the normal while entering the prism and towards the normal while emerging from the prism
away from the normal while entering as well as while emerging from the prism
towards the normal while entering as well as while emerging from the prism
उत्तर
When a ray of light enters a glass prism, it travels from a rarer medium to a denser medium. So, the ray of light bends towards the normal.
When the ray of light emerges from the glass prism, it travels from a denser medium to a rarer medium. So, the ray of light bends away from the normal.
Hence, the correct option is A.
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संबंधित प्रश्न
Study the following diagrams in which the path of a ray of light passing through a glass prism as traced by four students P, Q, R and S is shown:
The student who has traced the path correctly is
(A) P
(B) Q
(C) R
(D) S
Describe how you could demonstrate that white light is composed of a number of colours.
Draw a diagram to show the refraction of light through a glass prism. On this diagram, mark
(i) incident ray
(ii) emergent ray, and
(iii) angle of deviation.
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
The splitting of white light into its constituent colours is called .............
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 an experiment to trace the path of a ray of light through a glass prism for different values of angle of incidence a student would find that the emergent ray:
(A) is parallel to the incident ray
(B) perpendicular to the incident ray
(C) is parallel to the refracted ray
(D) bends at an angle to the direction of incident ray
Write the range of wavelength of the ultraviolet spectrum.
The process of separation of light into its component colours while passing through a medium is called _______.
