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प्रश्न
Does the depth of a tank of water appear to change or remain the same when viewed normally from above?
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उत्तर
Depth of the tank remains the same when viewed normally from above.
संबंधित प्रश्न
Study the following four experimental set-ups I, II, III and IV for the experiment, "To trace the path of a ray of light through a rectangular glass slab."
Which of the marked set-ups is likely to give best results (P1 and P2 are the positions of pins fixed on the incident ray)?
(A) I
(B) II
(C) III
(D) IV
State the dependence of angle of deviation On the wavelength of light
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?
How is the refractive index of a medium related to the speed of light in it?
A light ray in passing from water to a medium
(a) speeds up
(b) slows down. In each case, give one example of the medium.
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?
Define the term refractive index of a medium in terms of velocity of light.
The diagram shows the path of a ray of light through a rectangular glass block placed in a liquid of uniform density.
(a) Does the light speed up or slow down in the glass,
(b) Give the reason for your answer.
The velocity of light in diamond is 121000 kms-1. What is its refractive index?
