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प्रश्न
Light passes through a rectangular glass slab and through a triangular glass prism. In what way does the direction of the two emergent beams differ and why?
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उत्तर
In rectangular glass slab, the ray undergoes the only refraction and emerges out parallel. In a prism, the emerging ray is not parallel but split due to change in wavelength of different colour of light. The shape of the glass slab with two prisms up and down splits light but recombines it into one.
संबंधित प्रश्न
Draw a ray diagram to show the refraction of light through a glass slab and mark angle of refraction and the lateral shift suffered by the ray of light while passing through the slab.
A student very cautiously traces the path of a ray through a glass slab for different values of the angle of incidence (∠i). He then measures the corresponding values of the angle of refraction (∠r) and the angle of emergence (∠e) for every value of the angle of incidence. On analysing these measurements of angles, his conclusion would be
(A) ∠i > ∠r > ∠e
(B) ∠i = ∠e > ∠r
(C) ∠i < ∠r < ∠e
(D) ∠i = ∠e < ∠r
State the dependence of angle of deviation On the refractive index of the material of the prism.
With the help of diagram of the principal section of a prism, indicate its refracting surfaces, refracting edge and base.
Using the curve, how do you infer that for given prism, the angle of minimum deviation δmin is unique for the given light?
State the factors on which the angle of deviation depends.
Name two instruments of the total refracting prism in which is used.
How does the angle of deviation produced by a prism depend on the angle of incidence of light at the prism surface? Draw a graph to illustrate your answer.
