Answer:
If the frequency of a wave increases while its speed remains constant, the wavelength decreases i.e. the distance between successive crests decreases.
Explanation:
Are there choices? If there are choices what are they?
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.
The answer is; Atmospheric circulation patterns keep the temperature of an area constant.
The atmospheric circulation does not keep the temperatures in an area constant, however, they regulate temperatures through convection currents. Hot air rises as cold air mass sinks to replace the rising hot less dense air. These currents transfer energy around the globe and prevent one area from overheating.
Answer:
The amount of sunlight changes when moving between north and south.
Explanation:
Climate change results from global warming which is an increase in the temperature of the earth.
The sun is the primary source of temperature change on earth, and latitude place a great role in the amount of sunshine that come to an area. Places at high latitude receive less sunlight when compared to places at low latitude, this in turn determines how warm or cold a region can be. On the other when moving from east to west, it is along longitudinal lines and this can be on same elevation, thus there are no significant changes in temperature.
Therefore sunlight plays a key role in altering the temperature along latitudes.
