What type of lens is used to make a magnifying glass?
A) converging
B) diverging
C) Either type would work equally well.
A
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Which of the following accurately describes the properties of Saturn's rings?
A. The rings are very wide but very thin and composed of small particles typically a few centimeters or meters in size. B. The rings are a single, solid object. C. The rings are very wide but a very thin veil of gas that surrounds the planet. D. The rings are very wide but very thin and composed of large planetesimals a few kilometers in size.
If we increased the pressure in the gas of a blackbody, how will the spectral lines be affected?
What will be an ideal response?
When the Sun is a red giant, what will its approximate surface temperature be?
What will be an ideal response?
Why is UV astronomy difficult to do from the ground?
What will be an ideal response?