In these diagrams, the angle of refraction $r$ has been correctly marked in which diagram ?

Light — Reflection and Refraction

Refraction

Options

(A)I

(B)II

(C)III

(D)IV

Official Answer

The angle of refraction $r$ has been correctly marked in diagram II.

angle of refractionrefracted raynormal to the surfacepoint of incidence

Marking Scheme

1The angle of refraction $r$ is the angle between the refracted ray and the normal to the surface at the point of incidence.
2In diagram II, the angle of refraction $r$ is correctly marked as the angle between the refracted ray and the normal to the surface at the point of incidence.

Hint

The angle of refraction $r$ is the angle between the refracted ray and the normal to the surface at the point of incidence.

Quick Oral Answer

The angle of refraction $r$ is the angle between the refracted ray and the normal to the surface at the point of incidence. In diagram II, the angle of refraction $r$ is correctly marked as the angle between the refracted ray and the normal to the surface at the point of incidence.

Analysis & Explanation

The angle of refraction $r$ is an important concept in the study of refraction. It is the angle between the refracted ray and the normal to the surface at the point of incidence. In diagram II, the angle of refraction $r$ is correctly marked as the angle between the refracted ray and the normal to the surface at the point of incidence. This is because the refracted ray is bent towards the normal, and the angle of refraction $r$ is the measure of this bending.

Common Mistakes

1The angle of refraction $r$ is not the angle between the refracted ray and the normal to the surface at the point of incidence.
2The angle of refraction $r$ is not correctly marked in diagram II.

Interesting Facts

The angle of refraction $r$ is an important concept in the study of refraction.

The angle of refraction $r$ is the measure of the bending of the refracted ray towards the normal to the surface at the point of incidence.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2011?

This question carries 1 mark in the CBSE Class 10 Science 2011 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Light — Reflection and Refraction" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Refraction" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2011 paper?

This is a MCQ question from Section B in the CBSE Class 10 Science 2011 paper.