Light- Reflaction and Refraction NCERT solution Here we will discuss about the solution of the science ch1 class 10, light- reflection and refraction in-text as well as exercise solution. In- text questions Question 1. Define the principal focus of a concave mirror? Ans:- Principal focus is the point on principal Axis, where all the parllelly incident rays meet or where all the parllelly incident rays are converge. Question 2. The radius of curvature of a spherical mirror is 20 cm. what is its focal length? Ans:- Given R= 20cm F= R/2 F= 20/2 = 10cm Question 3 Name a mirror that can give an erect an enlarged image of an object? Ans:- Concave mirror, when we place object between principal focus and pole. Question 4. Why do we prefer a convex mirror as a rear-view mirror in vehicles? Ans:- We prefer a convex mirror as a rear view mirror in vehicles because it gives a wide range view as compared to other mirrors. Also we...
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