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प्रश्न
State the speed of light in (a) air, (b) water, and (c) glass
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उत्तर
Speed of light in
Air - 3 × 108 ms-1 or 300000 km/h
Water - 2.25 × 108 ms-1
Glass - 2 × 108 ms-1
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संबंधित 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:
Make two diagrams to explain refraction and dispersion.
What are the seven colours seen in a rainbow?
The coloured light having the maximum speed in glass prism is ______.
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
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:

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?
Name the scientist who was the first to use a glass prism to obtain the spectrum of sunlight.
Why do we see a rainbow in the sky only after rainfall?
What is Newton’s disc?
