10 cm high object is placed at a distance of 50 cm from a converging lens of focal length of
20 cm determine, position, size and type of image.
Answers
Answer:
Given conditions ⇒
Height of the Object(H₀) = 5 cm.
Object Distance(u) = 25 cm.
Focal length(f) = 10 cm.
Since, the lens is converging,
∴ u = -25 cm.
f = 10 cm.
Using the lens formula,
⇒
⇒ v = 50/3
∴ v = 16.67 cm.
Since, the image distance is positive. This means that the real image is formed by the Lens. Also, It is formed on the Opposite size of the lens. I means on the side where the x-axis is present.
Now, Magnification = v/u
= -16.67/25
= - 0.6668
Also, Magnification = H₁/H₀
∴ H₁ = 0.6668 × 5
= 3.334 cm.
≈ 3.3 cm.
Since, the height of the image is less than than that of the object, therefore the image is diminished with respect to the object.
Hope it helps.
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Answer:
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