Sample Questions on NCERT Notes Class 10 Physics Chapter 10
Q1: What is the real image?
Answer:
The image formed when rays of light meet at a certain point after reflection/refraction is real image. Real images can be displayed on screen.
Q2: What is a ray diagram?
Answer:
The type of diagram which helps to trace the path that light takes in order for a person to view a point on the image of an object is called a ray diagram.
Q3: What will be the change in focal length of a lens when it is cut along the principal axis?
Answer:
There will be no change in the focal length of a lens when cut into two halves along the principal axis, because the focal length of the lens is half of the radius of curvature and radius of curvature will remain the same.
Q4: A convex mirror is kept underwater. What would be the change in the focal length of the mirror?
Answer:
As the focal length of a spherical is independent of nature of the medium. So, the focal length of the convex mirror doesn’t change.
Q5: Two concave mirrors have the same focal length but the aperture of one is larger than that of the other. Which mirror forms the sharper image and why?
Answer:
As the concave mirror with smaller aperture is free from spherical aberration. So, concave mirror with smaller aperture forms sharper image.
Q6: Riya stands in front of a spherical mirror. She finds that her image has a very fat body. Tell us what was the shape of the mirror?
Answer:
As the image has very fat body means she is standing in front of a concave mirror.
NCERT Notes for Class 10 Physics Chapter 10 Light-Reflection and Refraction
Class 10 Physics Chapter 10 Light-Reflection and Refraction is one of the most important chapters to learn. In this article, we will learn about reflection, types of reflection, refraction, images formed by spherical, spherical lenses, and different types of lenses and mirrors, magnification, Power of lens, and light passing through a prism. This article is designed to provide students with a comprehensive summary of the entire class 10 NCERT Chapter 10 Notes and include all of the essential topics, formulas, and concepts necessary for success on exams.
Table of Content
- What is Light?
- Reflection of Light
- Mirror Formula
- Refraction of light
- Lens Formula
- Power of Lens