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प्रश्न
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उत्तर
Refraction is the bending of light at the surface of separation, which takes when it passes from one optical medium to another optical medium with different optical densities.
Ray diagram showing refraction of light through a glass slab:
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संबंधित प्रश्न
When a ray of light travels from air to glass slab and strikes the surface of separation at 90°, then it …………….
(a) bends towards normal
(b) bends away from normal
(c) passes unbent
(d) passes in zigzag way
Write a short note on dispersion of light.
How does the angle of minimum deviation produces by a prism change with increase in :
the refracting angle of prism?
A ray of light enters a glass slab ABDC as shown in figure and strikes at the centre O of the circular part AC of the slab. The critical angle of glass is 42°. Complete the path of the ray till it emerges out from the slab. Mark the angles in the diagram wherever necessary.
A total reflecting equilateral prism can be used to deviate a ray of light through:
Why does a fisherman aim at the tail of fish during spearfishing?
You are provided with a printed piece of paper. Using this paper how will you differentiate between a convex lens and a concave lens?
In the diagram below, PQ is a ray of light incident on a rectangular glass block.
Copy the diagram and complete the path of the ray of light through the glass block. In your diagram, mark the angle of incidence by letter ‘i’ and the angle of emergence by the letter ‘e’.
How will you verify the laws of refraction or how the refractive index of glass is determined in the laboratory?
The refractive index of glass with respect to air is 1.5. What is the value of the refractive index of air with respect to glass?
