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:

- 10 times nearer
- 20 times taller
- 20 times nearer
- 10 times taller

**Solution**

Telescope creates a focused image of a distant object, so that the object looks nearer. Magnifying power of telescope, M = 20, implies that the tree appears 20 times nearer.

**The correct option is C.**