Physics
JAMB 1978
an object 1cm high placed on the axis 15cm from a converging lens forms an image 30cm from the lens. The size of the image is
-
A.
0.5cm
-
B.
1.5cm
-
C.
3cm
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D.
2.5m
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E.
2cm
Correct Answer: Option E
Explanation
\(\frac{\text{image distance}}{\text{object distance}}\) = \(\frac{\text{image height}}{\text{object height}}\)
\(\frac{30}{15}\) = \(\frac{\text{image height}}{1}\)
image height = 2cm
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