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.
Explanation:
There are now many small soay sheep in Scotland because the winters are not as brutally cold as they use to be. The climate in Scotland has been warming therefore the sheeps of small stature can easily survive now in Scotland, which was not possible in earlier years.
The bending of light rays happens when the light rays hits an object. It moves in various directions thereby letting us to view that object that the bounced off.
<u>Explanation:</u>
Light gets reflected to human eyes and other body parts, when they hit a flat mirror. The bouncing off is not accurate in human heads and other parts that faces the mirror. The refracted rays from human bodies starts to hit at different angles in the mirror and are reflected back accurately. This is the reason for the backward appearance of mirror images to human eyes.
The light is reflected backward to the point behind the mirrors that are of Convex type. Hence the obtained image will be smaller and farther that its originals. The light will be drawn into the mirror's center point and hence the resultant image will be larger than the original object because of the light reflected by a concave mirror type.
