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प्रश्न
Name the phenomenon responsible in the following case:
Apparent bending of a stick in water
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उत्तर
Refraction of light
संबंधित प्रश्न
Four students P, Q, R and S traced the path of a ray of light passing through a glass slab for an angle of incidence 40° and measured the angle of refraction. The values as measured them were 18°; 22°; 25° and 30° respectively. The student who has performed the experiment methodically is
(A) P
(B) Q
(C) R
(D) S
Draw diagrams to show the refraction of light from glass to air. In diagram, label the incident ray, refracted ray, the angle of incidence (i) and the angle of refraction (r).
How does the angle of minimum deviation produces by a prism change with increase in :
the wavelength of incident light
The critical angle for glass-air is 45° for the light of yellow colour. State whether it will be less than, equal to, or more than 45° for (i) ref light, (ii) blue light?
How does the deviation produced by a prism depend on the refraction index of its material.
During sunset and sunrise, the sun is seen when it is slightly below the horizon. Give reason.
What is the refractive index of water
Can the absolute refractive index of a medium be less than one?
How does the angle of deviation produced by a prism depend on the colour of light used? Which colour of white light is deviated (i) most, (ii) least, by a prism?
