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प्रश्न
State two advantages of using a right-angle prism as a reflector, rather than a plane mirror.
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उत्तर
(i) There is no absorption of light in a prism and hence the image is brighter.
(ii) Image is sharper in case of the prism.
संबंधित प्रश्न
Name two factors which affect the critical angle for a given pair of media. State how do the factors affect it.
Plot a graph between
Angle of incidence versus angle of refraction.
Can light be ‘piped’ like sound in a doctor’s stethoscope?
How are critical angles related to the refractive index of the medium?
The adjacent diagram shows two right-angled isosceles prisms A and B. Complete the diagram to show the path of rays P and Q emerging out of the prism B. What principles have you used to complete the diagram?
Explain ‘mirage’ as an illustration of refraction.
Describe the construction and working of an optical fibre.
Which one of the following is NOT the correct formula for refractive index of glass w.r.t. air (aμg) (i = angle of incidence, r = angle of refraction)
The diagram below shows a fish in the tank and its image seen on the surface of the water.
Name the phenomenon responsible for the formation of this image.
