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sasho [114]
3 years ago
6

Describe how radio telescopes function.

Physics
1 answer:
FrozenT [24]3 years ago
7 0

A radio telescope is simply a telescope that is designed to receive radio waves from space. In its simplest form it has three components:

1. One or more antennas to collect the incoming radio waves. Most antennas are parabolic dishes that reflect the radio waves to a receiver, in the same way as a curved mirror can focus visible light to a point.

2. A receiver and amplifier to boost the very weak radio signal to a measurable level. These days the amplifiers are extremely sensitive and are normally cooled to very low temperatures to minimise interference due to the noise generated by the movement of the atoms in the metal (called thermal noise).

3. A recorder to keep a record of the signal. Most radio telescopes nowadays record directly to some form of computer memory disk as astronomers use sophisticated software to process and analyse the data.

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Lithium is more active than aluminium<br> A.True<br> B.false
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A:True because Lithium is the lighest solid and metal and the third lightest element.
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3 years ago
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Uranium-238 eventually decays into
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3 years ago
What is keeping all variables the same except for the one being tested an example of?
stepan [7]

Answer:

A fair test.

Explanation:

Hi, a fair test is used to do scientifically valuable experiments, is a controlled investigation to answer a scientific question.

In a fair test two or more things are compared.

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8 0
3 years ago
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Which lobes of the brain receive the input that enables you to feel someone scratching your back? (2 points)
andrew-mc [135]

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3 0
3 years ago
Given the wave function: Y(x,t) = 5sin27(0.2x - 3t); (x = meters, t = sec.): What are the amplitude, frequency, wavelength, angu
MariettaO [177]

Answer:

Explanation:

Y = 5 Sin27( .2x-3t)

= 5 Sin(5.4x - 81 t )

Amplitude = 5 m

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frequency = ω / 2π

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= 1.163 m

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15 m / s.

The wave is travelling in + ve x - direction.

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