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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) 20 times nearer (B) 10 times taller (C) 10 times nearer (D) 20 times taller

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) 20 times nearer (B) 10 times taller (C) 10 times nearer (D) 20 times taller

Grade:12

2 Answers

SAHIL
3778 Points
7 years ago
this tree will appear 20 times taller to observer. so correct option to this question is d
thanks. post if you have any doubt or query
Shreyasi Maitra
5 Points
5 years ago
A telescope can magnify an object. It can only make it closer than it appears to be. Eg: think about viewing moon from earth through an astronomical telescope.
m=v/u
So, v=my=20u
Ans is option A

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