Question

Which is not an advantage of radio telescopes over optical telescopes?

A) Radio telescopes are less affected by atmospheric conditions.
B)Radio telescopes have better resolution.
C)Radio telescopes can operate 24 hours a day.
D)Radio telescopes are less expensive.

Answer 1

Answer: The correct answer is Option B.

Step-by-step explanation:

Radio telescopes is an instrument which is used to detect the radio emissions from the sky.

Optical telescopes is an instrument which collects visible light that bring it to a focus, amplify it and it is used for the analysis by various instruments.

Advantages of radio telescopes over optical telescopes are:

1. It is unaffected by Earth's atmospheric conditions.
2. It can work all day and all night, which means it can work 24 hours a day.
3. It is used to save a lot of money which means it is less expensive.

Radio telescope does not have a better resolution because resolution depends on the wavelength of the light and this telescope absorbs weak light waves.

Therefore, the correct answer is Option B.

Answer 2

The correct answer is option B. The radio telescopes have better resolution than optical telescopes.

This statement is false. Because optical telescopes have better resolution than radio telescopes. A radio telescope is capable of showing only single pixel of the image while optical telescope show the complete image with so many hundreds-thousands pixels in it.