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(B) The magnifying power $(M)$ of a telescope is defined as the ratio of the angle subtended by the image at the eye to the angle subtended by the obj

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$20$ times nearer

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(B) The magnifying power $(M)$ of a telescope is defined as the ratio of the angle subtended by the image at the eye to the angle subtended by the object at the unaided eye.In practical terms,a telescope does not change the physical height of the object; instead,it makes the object appear to be closer to the observer by a factor equal to its magnifying power.Since the magnifying power is $20$,the tree appears to be $20$ times closer to the observer than it actually is.

An observer looks at a distant tree of height $10 \ m$ with a telescope of magnifying power of $20$. To the observer,the tree appears:

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