Does a telescope magnify distant objects?

In summary, when using a telescope with a magnifying power of 10, the tree of height 15 meters will appear to be 10 times taller. However, this is due to the telescope's angular magnification, not a linear magnification. The telescope brings the image of the tree closer, giving the impression of increased height. Therefore, this feature cannot be solely referred to as magnification.
  • #1
Amith2006
427
2
# An observer looks at a tree of height 15 meters with a telescope of magnifying power 10. How does the tree appear to the man?
I think the tree will appear to be 10 times taller. Is it right?
 
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  • #2
Is that exactly how the question is stated?

In short, you are correct, but...

Telescope magnification is "angular magnification" not "linear magnification." A 10 X scope does not necessarily mean you will say "oh my god, that looks like a 150 meter tall tree!" You are more likely to have the impression that you are standing closer to the tree such that the subtended angle is increased ten times.
 
  • #3
Chi Meson said:
Is that exactly how the question is stated?

In short, you are correct, but...

Telescope magnification is "angular magnification" not "linear magnification." A 10 X scope does not necessarily mean you will say "oh my god, that looks like a 150 meter tall tree!" You are more likely to have the impression that you are standing closer to the tree such that the subtended angle is increased ten times.
The tree is at a large distance from the man. The telescope brings the image of the tree nearer. Can’t we call that feature of the telescope as magnification?
 

What is the purpose of a telescope?

The main purpose of a telescope is to collect and focus light from distant objects in order to make them appear larger and clearer to the observer.

How does a telescope form an image?

A telescope forms an image by using a combination of lenses or mirrors to bend and focus light onto a focal point, creating a magnified and inverted image of the object being observed.

What factors affect the quality of the image formed by a telescope?

The quality of the image formed by a telescope can be affected by factors such as the size and quality of the lenses or mirrors, the level of magnification, atmospheric conditions, and the skill of the observer.

What is the difference between a refracting telescope and a reflecting telescope?

A refracting telescope uses lenses to bend and focus light, while a reflecting telescope uses mirrors to reflect and focus light. Reflecting telescopes are generally larger and more powerful, but refracting telescopes are more commonly used for amateur observation.

Can a telescope form an image of objects outside of our solar system?

Yes, a telescope can form an image of objects outside of our solar system. In fact, telescopes have allowed us to see and study distant galaxies, stars, and other celestial bodies that are too far away to be seen with the naked eye.

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