(a) What is the distance between an object and its real image formed by a thin...

(a) What is the distance between an object and its real image formed by a thin converging lens with focal length f = 16 cm, if the object distance is 45 cm? (b) What is the minimum object-image distance for a real image formed by that lens?

Expert Solution

a) Here, 1/v + 1/u = 1/f

=> 1/v = 1/16 - 1/45

=> v = 24.827 cm

Thus, distance between an object and its real image = v + u

= 24.827 + 45

= 69.827 cm

b) the minimum object-image distance for a real image = 4 * focal length

= 4 * 16

= 64 cm

genius_generous answered 2 years ago

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