Q27
1 markMCQSection B

In the following ray diagram the correctly marked angle are:

Figure for question 27
Also asked in:2016
Chemical Reactions and Equations
Chemical Reactions and Equations

Options

(a)i\angle i and e\angle e
(b)A\angle A and D\angle D
(c)i\angle i, e\angle e and D\angle D
(d)r\angle r, A\angle A and D\angle D
Official Answer

The correct answer is (c) i\angle i, e\angle e and D\angle D.

angle of incidenceangle of emergenceangle of deviationangle of refractionangle of reflection

Marking Scheme

  • 11 mark for correct answer
  • 20 marks for incorrect answer

Hint

The ray diagram shows the path of light as it passes through a prism. The angles marked in the diagram are i\angle i, e\angle e, A\angle A, D\angle D, and r\angle r. The angle of incidence (i\angle i) is the angle between the incident ray and the normal to the surface of the prism. The angle of emergence (e\angle e) is the angle between the emergent ray and the normal to the surface of the prism. The angle of deviation (D\angle D) is the angle between the incident ray and the emergent ray. The angle of refraction (r\angle r) is the angle between the refracted ray and the normal to the surface of the prism. The angle of reflection (A\angle A) is the angle between the reflected ray and the normal to the surface of the prism. The correct answer is (c) i\angle i, e\angle e and D\angle D.

Quick Oral Answer

The correct answer is (c) i\angle i, e\angle e and D\angle D.

Analysis & Explanation

The ray diagram shows the path of light as it passes through a prism. The angles marked in the diagram are i\angle i, e\angle e, A\angle A, D\angle D, and r\angle r. The angle of incidence (i\angle i) is the angle between the incident ray and the normal to the surface of the prism. The angle of emergence (e\angle e) is the angle between the emergent ray and the normal to the surface of the prism. The angle of deviation (D\angle D) is the angle between the incident ray and the emergent ray. The angle of refraction (r\angle r) is the angle between the refracted ray and the normal to the surface of the prism. The angle of reflection (A\angle A) is the angle between the reflected ray and the normal to the surface of the prism. The correct answer is (c) i\angle i, e\angle e and D\angle D.

Common Mistakes

  1. 1confusing angle of incidence with angle of emergence
  2. 2confusing angle of deviation with angle of refraction
  3. 3confusing angle of reflection with angle of incidence

Interesting Facts

The ray diagram shows the path of light as it passes through a prism.

The angles marked in the diagram are i\angle i, e\angle e, A\angle A, D\angle D, and r\angle r.

The angle of incidence (i\angle i) is the angle between the incident ray and the normal to the surface of the prism.

The angle of emergence (e\angle e) is the angle between the emergent ray and the normal to the surface of the prism.

The angle of deviation (D\angle D) is the angle between the incident ray and the emergent ray.

The angle of refraction (r\angle r) is the angle between the refracted ray and the normal to the surface of the prism.

The angle of reflection (A\angle A) is the angle between the reflected ray and the normal to the surface of the prism.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2016?

This question carries 1 mark in the CBSE Class 10 Science 2016 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Chemical Reactions and Equations" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Chemical Reactions and Equations" from CBSE Class 10 Science.

Has this question appeared in other CBSE Science papers?

Yes, a similar question appeared in the 2016 CBSE Class 10 Science paper.

What type of question is this in the CBSE Class 10 Science 2016 paper?

This is a MCQ question from Section B in the CBSE Class 10 Science 2016 paper.