Solution:-
Given that radius of curvature of concave mirror=20 cm
Or, radius of curvature of mirror=-20 cm
From Formula,
⇒f=R/2
⇒f=-20/2
⇒f=-10 cm
Radius of curvature of a mirror is 20 cm What type of mirror is it
Solution:- CONVEX MIRROR
Explanation:- According to sign convention if radius of curvature of spherical mirror is positive then it's called convex mirror.
The radius of curvature of a spherical mirror is 35 cm what is the focal length
Solution:- 17.5 cm
Explanation:-
Given that the radius of curvature of a spherical mirror=35 cm
Or, the radius of curvature of concave mirror=35 cm
From formula,
f=R/2
f=35/2
f=17.5 cm
The focal length of convex mirror is 17.5 cm ans
Name a mirror that can give an erect and enlarged image of an object
Ans:- concave mirror
Explanation:-
Infront of concave mirror if object is placed between pole and focus then gives erect and enlarged image of an object.
