Physics
Mention the incorrect statement:
- The angle of deviation produced by a prism depends on the colour or wavelength of the light used.
- The angle of incidence also affects the angle of deviation produced by the prism.
- In a prism as well as a parallel sided glass slab the emergent ray is parallel to the incident ray with a lateral displacement.
- The angle of deviation of prism is also affected by the material of the prism.
Refraction Plane Surfaces
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Answer
In a prism as well as a parallel sided glass slab the emergent ray is parallel to the incident ray with a lateral displacement .
Reason — In a parallel-sided glass slab, the emergent ray is parallel to the incident ray without any lateral displacement. However, in a prism, there is a lateral displacement of the emergent ray due to the angle of the prism.
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Related Questions
The angle of deviation becomes minimum when:
- i1 = r1
- i1 = r2
- i1 = i2
- r2 = i2
In position of minimum deviation, the refracted ray inside the prism is …………… to its base:
- normal
- inclined at 45°
- parallel
- none of the above
A ray of light is incident normally on the face of an equilateral glass prism. The angle of refraction from the first face of prism is :
- 45°
- 90°
- 60°
- 0°
The refracting angle of prism is 60° and the angle of deviation is 30°. In the position of minimum deviation, the angle of incidence i1 and the angle of emergence i2 are :
- i1 = 45°, i2 = 30°
- i1 = 30°, i2 = 45°
- i1 = 45°, i2 = 45°
- i1 = 30°, i2 = 30°