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प्रश्न
The diagram given below in fig shows a ray of light AO falling on a surface separating two media. Draw the refracted ray in each, case.
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उत्तर
Refracted ray 0 C is shown in each case.
Towards the normal or ∠r < ∠i
Away from the normal or ∠r > ∠i
Refracted ray goes undeviated
or
∠i = 0
∠r = 0
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संबंधित प्रश्न
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be ______.
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a concave mirror?
Which mirror has a wider field of view?
What is the advantage of using a convex mirror as rear-view mirror in vehicles as compared to a plane mirror? Illustrate your answer with the help of labelled diagrams.
An object is placed at a distance of 10 cm from a convex mirror of focal length 5 cm.
(a) Draw a ray-diagram showing the formation image
(b) State two characteristics of the image formed
(c) Calculate the distance of the image from mirror.
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Object is placed between infinity and device, image formed is diminished and between pole and focus, behind it.
The field of view is maximum for ______.
Higher-Order Thinking Skills:
A convex mirror is in water. What should be the change in its focal length?
Match the following.
| Column I | Column II |
| Convex mirror | Radio telescopes |
| Parabolic mirror | Rear-view mirror |
| Snell’s law | Kaleidoscope |
| Dispersion of light | sin i/sin r =μ |
| Refractive index | Rainbow |
