Determine the focal length of a convex lens that produces a virtual image at the distance of 30mm when the object is placed 15mm away. Show all of your work for full marks.
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Answer:
Given
Image distance, v=50cm
Object distance u=20cm
Since, the image is virtual it will be formed on the same side of the object.
From lens formula,
f1=v1−u1
f1=−501−−201
=1003
f=3100cm= focal length
Step-by-step explanation:
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