SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Telescopes can only use wavelengths of electromagnetic radiation that are shorter than visible light to detect objects in space.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The Hubble Space Telescope can view objects in more than just visible light, including ultraviolet, visible and infrared light. These observations enable astronomers to determine certain physical characteristics of objects, such as their temperature, composition and velocity.

Detailed explanation-2: -Visible light and radio waves get through to telescopes on the ground, and some detectors (infrared, UV and gamma) work when they are high up on mountains.

Detailed explanation-3: -Ultraviolet (UV) light-is radiation with a wavelength shorter than that of visible light, but longer than X-rays, in the range 10 nm to 400 .

Detailed explanation-4: -Radio telescopes are used to study radio waves and microwaves between wavelengths of about 10 meters and 1 millimeter emitted by astronomical objects.

Detailed explanation-5: -Space telescopes have the advantage of being above the blurring effects of the Earth’s atmosphere. In addition, there are many wavelengths from the electromagnetic spectrum that do not reach Earth because they are absorbed or reflected by the Earth’s atmosphere.

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