Study the following ray diagram: In this diagram, the angle of incidence, the angle of emergence and the angle of deviation respectively have been represented by
Study the following ray diagram: In this diagram, the angle of incidence, the angle of emergence and the angle of deviation respectively have been represented by
Options
The angle of incidence is the angle at which a light ray enters a medium. In this diagram, it is represented by x. The angle of emergence is the angle at which a light ray leaves a medium. In this diagram, it is represented by q. The angle of deviation is the angle between the incident ray and the emergent ray. In this diagram, it is represented by z.
Marking Scheme
- 1Identify the angles in the diagram
- 2Match the angles with the definitions of angle of incidence, angle of emergence, and angle of deviation
Hint
Identify the angles in the diagram and match them with the definitions of angle of incidence, angle of emergence, and angle of deviation.
Quick Oral Answer
The angle of incidence is the angle at which a light ray enters a medium. In this diagram, it is represented by x. The angle of emergence is the angle at which a light ray leaves a medium. In this diagram, it is represented by q. The angle of deviation is the angle between the incident ray and the emergent ray. In this diagram, it is represented by z.
Analysis & Explanation
The correct answer is B because the angle of incidence is represented by x, the angle of emergence is represented by q, and the angle of deviation is represented by z.
Common Mistakes
- 1Confusing the angles in the diagram
- 2Not matching the angles with the correct definitions
Interesting Facts
The angle of deviation is related to the refractive index of the medium.
The angle of incidence and angle of emergence are equal when the light ray passes through a medium with the same refractive index.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2017?
This question carries 1 mark in the CBSE Class 10 Science 2017 examination.
Which chapter does this question come from in Science?
This question is from the chapter "The Human Eye and the Colourful World" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Refraction of Light" from CBSE Class 10 Science.
Has this question appeared in other CBSE Science papers?
Yes, a similar question appeared in the 2017 CBSE Class 10 Science paper.
What type of question is this in the CBSE Class 10 Science 2017 paper?
This is a MCQ question from Section B in the CBSE Class 10 Science 2017 paper.