Physics
A total reflecting prism is:
- right-angled prism
- equilateral prism
- right-angled isosceles prism
- all of the above
Refraction Plane Surfaces
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Answer
right-angled isosceles prism
Reason — A prism having an angle of 90° between its two refracting surfaces and the other two angles each equal to 45°, is called a total reflecting prism because the light incident normally on any of its faces, suffers total internal reflection inside the prism.
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Related Questions
The critical angle for the glass-air interface is:
- 24°
- 48°
- 42°
- 45°
The condition required for total internal reflection to take place is:
- light ray passes from a rarer to denser medium
- light ray passes from a denser to rarer medium
- angle of incidence is less than critical angle
- none of the above
An equilateral prism can be used to deviate a ray of light through:
- 30°
- 60°
- 75°
- 90°
Which of the following figures will depict deviation of ray of light A through 180°
