A 1 Cm Object Is Placed 20 Cm from a Lens

question 55

Multiple Choice

A 1 cm object is placed 20 cm from a lens. The lens forms a real and inverted image of size 1.5 cm. What is the focal length of the lens?

• A) 8.0 cm
• B) 12 cm
• C) 16 cm
• D) 20 cm
• E) 24 cm

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