(a) Write the name of the lens used to correct nearsightedness (myopia)
(b) What will be the radius of curvature of a concave mirror of focal length $10 c m$ ?

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Solution

(a) A concanve lens is used to correct myopia.
(b) The radius of curvature of a mirror is double the focal length.
$⟹ R = 2 f = 20 c m$

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(a) Write the name of the lens used to correct nearsightedness (myopia)(b) What will be the radius of curvature of a concave mirror of focal length 10cm?

(a) A concanve lens is used to correct myopia.(b) The radius of curvature of a mirror is double the focal length.⟹R=2f=20cm

(a) Write the name of the lens used to correct nearsightedness (myopia)
(b) What will be the radius of curvature of a concave mirror of focal length $10 c m$ ?

(a) A concanve lens is used to correct myopia.
(b) The radius of curvature of a mirror is double the focal length.
$⟹ R = 2 f = 20 c m$