Welcome to the CDS 1 2024 Physics Lecture on Light – Reflection and Refraction Multiple Choice Questions (MCQs). In this session, we’ll dive into various MCQs related to the fascinating topics of light reflection and refraction. By solving these MCQs, we’ll not only test our knowledge but also reinforce our understanding of key concepts in optics.
Understanding Light – Reflection and Refraction
Before we begin solving MCQs, let’s briefly review the fundamental concepts of light reflection and refraction. Light reflection occurs when light rays bounce off a surface, following the laws of reflection. On the other hand, light refraction occurs when light rays pass from one medium to another and change direction due to a change in speed. These phenomena are essential to understanding how light behaves and are crucial in various fields, including optics, photography, and engineering.
Light Reflection And Refraction Important MCQs
Q) An Object Is Placed At A Distance Of 0.25 m In Front Of A Plane Mirror. The Distance Between The Object And Image Will Be
A. 0.25 m
B. 1.0 m
C. 0.5 m
D. 0.125 m
Ans : C
Q) In the case of a concave mirror, if an object is kept between principal focus F and pole P of the mirror, then which one of the following statements about the image is not correct ?
A. The image will be virtual
B. The image will be enlarged or magnified
C. The image will be formed at infinity
D. The image will be erect
Ans : C
Q) Sita, 1.5 high, stands before a plane mirror fixed on a wall to view her full image. what should be the minimum height of the plane mirror so that Sita can view her image fully ?
A .0.50 m
B. 0.35 m
C. 0.75 m
D. 0.25 m
Ans : C
Q) Mirage is an illustration of
A. only dispersion of light.
B. only reflection of light.
C. only total internal reflection of light.
D. both refraction and total internal reflection of light
Ans : D
Q) A lens has a power of +2.0 Dioptre. Which one of the following statements about the lens is true ?
A. the lens is concave and has a focal length of 0.5 m.
B. the lens is convex and has a focal length of 2.0 m.
C. the lens is convex and has a focal length of 0.5 m.
D. the lens is concave and has a focal length of 2.0 m.
Ans : C
For an explanation of the above questions and other related MCQs, please refer to the YouTube video above.
