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प्रश्न
The critical angle for glass-air interface is :
पर्याय
24°
48°
42°
45°
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उत्तर
42°
संबंधित प्रश्न
Write the relation between the angle of incidence and the angle of refraction for a medium.
How is the refractive index of a medium related to the speed of light in it?
A ray of light of wavelength 6600 Å suffer refraction from air to glass. Taking \[\ce{_a\mu_g = \frac{3}{2}}\], find the wavelength of light in glass.
While performing the experiment on tracing the path of a ray of light through a rectangular glass slab, in which of the following experimental set-ups is a student likely to get best results? P1 and P2 are the positions of pins fixed by him.
(A) I
(B) II
(C) III
(D) IV
Define the term refractive index of a medium. What do you understand by the statement 'the refractive index of glass is 1.5 for white light'?
Name the phenomenon responsible in the following case:
Apparent bending of a stick in water
Why upper surface of water contained in a beaker and above eye level appears silvery?
Name the material for which the refractive index is found to be maximum.
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 colour of light used? Which colour of white light is deviated (i) most, (ii) least, by a prism?
