A convex lens has a focal length of 25 cm . Calculate the distance of the object from the lens of the image is to be formed on the opposite

Question

A convex lens has a focal length of 25 cm . Calculate the distance of the object from the lens of the image is to be formed on the opposite side of the lens at a distance of 75 cm from the lens . What will be the nature of the image ?​

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Alice 1 month 2021-08-18T02:31:49+00:00 1 Answer 0 views 0

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    2021-08-18T02:33:39+00:00

    Answer:

    object distance=

    Step-by-step explanation:

    object distance=u

    image distance=v=75cm

    focal length=25cm

    By using lens formula, we get

    -1/u= 1/f-1/v

    -1/u=1/25-1/75

    -1/u=(3-1)/75 [ by taking LCM of 25&75]

    -1/u=2/75

    -1/u=1/37.5

    u=-37.5cm

    since the image is formed behind the mirror, therefore it is virtual and erect.

    hope it will help you.

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