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प्रश्न
Draw a diagram, properly labelled, to illustrate the use of a total reflecting prism (a right-angled isosceles prism) to turn a ray of light through 180°. Name an instrument in which this device is used.
उत्तर
The diagram is shown below. This device is used in binoculars.
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संबंधित प्रश्न
State the conditions required for total internal reflection of light to take place
Draw diagram to illustrate the total internal reflection.
How does a ray of light bend when it travels from when it is normal to the interface of the two media.
Images formed by totally reflecting prisms are brighter than the image formed by ordinary reflected light, why?
Complete the following diagram to show the path of the ray of a single colour in the diagram as if enters in and emerges out of the prism. Mark the angles wherever necessary. (Critical angle for glass = 42°).
A spherical marble, of refractive index 1.5 and curvature 1.5 cm, contains a tiny air bubble at its centre. Where will it appear when seen from outside?
Choose the correct option.
Select the WRONG statement.
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
What is a mirage? How does it occur?
Which of the following is used in optical fibres?
