Question

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:

• A. 10 times taller .
• B. 10 times nearer .
• C. 20 times taller .
• D. 20 times nearer .

Answer 1

Answer: (D)

20 times nearer .

Telescope is used to obtain a clear and focused image of a distant object. By increasing the magnifying power of a telescope, the image will appear close to the observer.

So by using a telescope of magnifying power 20, the tree appears 20 times nearer to the observer