Welcome to the NDA 1 2024 Physics Lecture focusing on Light-Reflection and Refraction Multiple Choice Questions (MCQs). In this session, we’ll engage in solving various MCQs related to the topics of light reflection and refraction. By tackling these MCQs, we’ll not only test our knowledge but also reinforce key concepts in optics.
Understanding Light – Reflection and Refraction
Before we delve into solving MCQs, let’s briefly review the basic concepts of light reflection and refraction. Light reflection occurs when light rays bounce off a surface, obeying the laws of reflection. On the other hand, light refraction occurs when light rays pass from one medium to another, bending due to a change in speed. These phenomena play a crucial role in our everyday experiences, from the reflection of light in mirrors to the refraction of light in lenses.
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.
