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Light Reflection and Refraction
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17/08/2021 3:48 pm
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Find the position and nature of the image of an object 5 cm high and 10 cm in front of a convex lens of focal length 6 cm.
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17/08/2021 3:52 pm
\(h_1\) = 5 cm
u = -10 cm
f = 6 cm
\(\frac{1}{v}\) - \(\frac{1}{u}\) = \(\frac{1}{f}\)
\(\frac{1}{v}\) - \(\frac{1}{-10}\) = \(\frac{1}{6}\)
\(\frac{1}{v}\) = \(\frac{1}{10}\) - \(\frac{1}{10}\)
= \(\frac{2}{30}\) = \(\frac{1}{15}\)
v = 15 cm
Image is formed 15 cm behind the convex lens and it is real and inverted.