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प्रश्न
Draw a diagram of a prism and label:
(i) the base,
(ii) the refracting surfaces,
(iii) the refracting edge,
(iv) the refracting angle in it.
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उत्तर
The figure shows a prism, in which BEFC is the refracting edge, and ∠BAC or ∠EDF is the refracting angle of the prism which has been marked by the symbol A.
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
Name one factor that affects the lateral displacement of light as it passes through a rectangular glass slab.
How does the angle of minimum deviation produces by a prism change with increase in :
the wavelength of incident light
A coin is places at the bottom of a beaker containing water (refractive index = 4/3) to a depth of 12 cm. By what height the coin appears to be raised when seen from vertically above?
Fig. shows a ray of white light that passes through a prism and produces a spectrum.
(a) Name the phenomenon that is taking place.
(b) What colour would you see at X and Y?
(c) What radiation would you detect above X and below Y?
Name the material for which the refractive index is found to be maximum.
What is the total reflecting prism?
In what condition a prism is said to be in the position of minimum deviation? What is the direction of the refracted ray inside the prism in this condition?
Calculate the velocity of light in a glass block of refractive index 1.5. (Velocity of light in air = 3 × 108 m/s)
Which colour of white light travels fastest in any medium except air?
