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प्रश्न
State three actions that a total reflecting prism can produce.
What are the three actions produced by a total reflecting prism?
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उत्तर
- A total reflecting prism can deviate the path of a ray of light by 90°.
- A total reflecting prism can turn a ray of light through 180°.
- A total reflecting prism can invert the rays of light.
संबंधित प्रश्न
Copy the diagram given below and complete the path of the light ray till it emerges out of the prism. The critical angle of glass is 42°. In your diagram mark the angles wherever necessary.
What is a total reflecting prism?
Show with the help of a diagram how a total reflecting prism can be used to turn a ray of light through 90°. Name one instrument in which such a prism is used.
In the following figure, a ray of light PQ is incident normally on the hypotenuse of an isosceles right angle prism ABC.
- Complete the path of the ray PQ till it emerges from the prism. Mark in the diagram the angle wherever necessary.
- What is the angle of deviation of the ray PQ?
- Name a device in which this action is used.
What device other than a plane mirror can be used to turn a ray of light through 180°? Draw a diagram in support of your answer. Name an instrument in which this device is used.
Mention one difference between reflection of light from a plane mirror and total internal reflection of light from a prism.
A total reflecting equilateral prism can be used to deviate a ray of light through ______.
A total reflecting right angled isosceles prism can be used to deviate a ray of light through ______.
Complete the path of ray PQ through the glass prism ABC shown in Fig. till it emerges out of the prism. Given the critical angle of the glass is 42°.
Draw a diagram to show one such action of the total reflecting prism.
