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The diameter of the moon is 3.5 xx 10^(3...

The diameter of the moon is `3.5 xx 10^(3)km` and its distance from the earth is `3.8 xx 10^(5)km`. It is viewed by a telescope which consists of two lenses of focal lengths 4m and 10 cm. Find the angle subtended at eye by the final image.

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The correct Answer is:
`21.1^(@)`
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