A convex lens with a focal length of 10 cm is located 30 cm away from a candle. How far from the lens is the image locate

Question

A convex lens with a focal length of 10 cm is located 30 cm away from a
candle. How far from the lens is the image located on the other side, to the
nearest cm? Record your answer to the nearest whole number. *

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Jezebel 3 days 2021-07-20T10:34:17+00:00 1 Answers 2 views 0

Answers ( )

    0
    2021-07-20T10:35:49+00:00

    Answer: 15 cm

    Explanation:

    According to the Lens Equation we have the following:

    \frac{1}{f}=\frac{1}{v}+\frac{1}{u} (1)

    Where:

    f=10 cm is the focal length

    u=30 cm is the distance between the candle (the object) and the lens

    v is the distance between the image and the lens

    Isolating v:

    v=\frac{uf}{u-f}} (2)

    Solving:

    v=\frac{(30 cm)(10 cm)}{30 cm-10 cm}} (3)

    Finally:

    v=15 cm This is where the image is located

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