Answer:
d). It is easier to make a large reflecting telescope than a large refracting telescope.
f). A reflector can collect more light than a refractor.
Explanation:
A telescope is a device that is used to observe distant objects by the use of lenses and mirrors. It is also used to observe different distant objects by their reflection, absorption, emission or the reflection of the electromagnetic radiations.
Most of the professional telescopes are reflectors because :
1. The reflected telescope is able to receive more of the light when it reflects all the light falling on surface. And it is easier for making a large telescope rather then making large lenses for the refracting telescope. So it is easier to make large reflecting telescope than a large refracting telescope.
2. A reflected telescope receives all the wavelength of the light and it reflects all the light falling on the surfaces where it is refracted telescope that contains lenses cannot absorbs all the light and causes the chromatic aberration.
About 70% of the Earth's freshwater is found in the form of ice caps and glaciers -it is frozen. Out of this, the majority is actually in one place: covering the continent of Antarctica.
One could argue that there is
more water in the oceans, but it's not fresh water- it's salty water, so it's not good to drink.
Answer:
the national forest policy was formed in india in 19th October 1894
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Answer:
this is the answer
Explanation:
Pretoria was ranked as the most dangerous city in the country in 2020/21, with the highest crime score and lowest safety score. ... This is followed by assault and robbery, and property crimes like theft and motor vehicle theft
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