Give two advantages that a telescope lens or mirror of large diameter has over one of small diameter
More light gathering ability
Because of this, will give higher resolution at increased power
how does the earth revolve around the earth?
One advantage of a telescope lens or mirror with a large diameter is its increased light gathering ability. This is because a larger surface area can capture more incoming light compared to a smaller surface area.
To understand this advantage, you can think of the lens or mirror as a bucket collecting raindrops. A larger bucket can collect more raindrops in a given duration than a smaller one. Similarly, a larger telescope lens or mirror can gather more light from celestial objects such as stars, galaxies, or planets, allowing astronomers to observe fainter and more distant objects.
The second advantage of a larger telescope diameter is the potential for higher resolution at increased power. Resolution refers to the ability to distinguish fine details in an image. With a larger telescope, smaller details can be resolved more clearly due to its larger collecting area.
To explain this, let's consider an analogy of viewing a distant object. If you are looking at a distant building with your naked eye, you can see the overall shape and some basic details. But if you use binoculars or a telescope, which have larger objective lenses or mirrors, you can see finer details such as windows, textures, or even individual bricks. Similarly, a larger telescope diameter allows astronomers to observe and study finer details in celestial objects, leading to a better understanding of their structure and composition.
In summary, a telescope lens or mirror with a large diameter has the advantage of gathering more light, allowing the observation of fainter objects. Additionally, it provides higher resolution, enabling astronomers to study finer details in celestial objects when compared to a telescope with a smaller diameter.