NCERT Solutions for Class 10 Light- Reflection and Refraction: To help students retrieve the right solutions for all the questions given in Class 10 Science NCERT book we have collated detailed and accurate answers here at jagranjosh.com. Prepared by subject matter experts, all the solutions will help students learn the right technique to write perfect answers in the board exams to obtain high score.
In this article we are providing the NCERT solutions for Class 10 Science Chapter 9: Light- Reflection and Refraction. Our subject experts have reviewed these NCERT solutions to provide error-free content which will make it easy for you to prepare easily and effectively for the class 10 board exams. All the class 10 Science NCERT solutions have been collated in PDF format which students may easily download for free. Fresnel Lens For Sale
Check NCERT Solutions for Class 10 Science Chapter Light- Reflection and Refraction below:
Question 1: Define the principal focus of a concave mirror.
Solution: A point on principal axis on which parallel light rays converges after reflecting from the mirror is called the principal focus of a concave mirror.
Question 2: The radius of curvature of a spherical mirror is 20 cm. What is its focal length?
Radius of curvature, R = 20 cm
Radius of curvature of a spherical mirror = 2 × Focal length (f)
R = 2f ⇒ f = R/2 ⇒ f = 20/2 = 10 cm
Hence, the focal length of the given spherical mirror is 10 cm.
Question 3: Name a mirror that can give an erect and enlarged image of an object.
Solution: When an object is placed between the pole and the principal focus of a concave mirror, virtual, erect, and enlarged image is formed.
Question 4: Why do we prefer a convex mirror as a rear-view mirror in vehicles?
Solution: Convex mirror forms a virtual, erect, and diminished image of the objects that are placed in front of it. These mirrors give a wide field of view, which allows the driver to see most of the traffic behind him. Thus, they are preferred as a rear-view mirror in vehicles.
Question 5: Find the focal length of a convex mirror whose radius of curvature is 32 cm.
Since the image formed here is real so it is inverted.
Now, magnification produced by a spherical mirror is:
m = −Image distance/Object distance
Get the complete the NCERT solutions for Class 10: Light- Reflection and Refraction, from the following link:
Before solving the questions given in the Class 10 Science NCERT chapter- Light- Reflection and Refraction, students should thoroughly read this chapter to grasp all the concepts explained in it. This will help you understand the problem discussed in a question and then come up with an appropriate answer.
Main topics discussed in Class 10 Science chapter: Light- Reflection and Refraction are:
Find below the link to download the latest edition of the Class 10 Science NCERT Book:
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