21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Concept explainers
Question
Chapter 6, Problem 1QP
To determine
The correct statement about the telescopes having different aperture size.
Expert Solution & Answer
Answer to Problem 1QP
Option (c)
Explanation of Solution
Light gathering power of a telescope is proportional to the square of aperture.
Here,
Conclusion:
The equation shows that higher the aperture size, higher will be the light gathering power. Thus, option (c) is correct.
20 cm telescope will have less gathering power. Thus, option (a) is incorrect.
Image size is not related to aperture size. Thus, option (b) and (d) are incorrect.
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Students have asked these similar questions
Which of the following telescopes must be used above Earth’s atmosphere?
a.
an optical telescope
b.
the VLBI telescope
c.
an X-ray telescope
d.
a radio telescope
e.
none of the above
One of the disadvantages of a radio telescope compared to a reflecting optical telescope is its inability to
a.
reveal finer detail.
b.
detect cool hydrogen.
c.
see through interstellar dust.
d.
see some of the most distant objects in the universe.
The focus location that would be most inconvenient for a very large telescope is the
a.
Newtonian focus.
b.
prime focus.
c.
coudé focus
d.
Cassegrain focus.
e.
refracting focus.
Chapter 6 Solutions
21st Century Astronomy
Ch. 6.1 - Prob. 6.1ACYUCh. 6.1 - Prob. 6.1BCYUCh. 6.2 - Prob. 6.2CYUCh. 6.3 - Prob. 6.3CYUCh. 6.4 - Prob. 6.4CYUCh. 6.5 - Prob. 6.5CYUCh. 6 - Prob. 1QPCh. 6 - Prob. 2QPCh. 6 - Prob. 3QPCh. 6 - Prob. 4QP
Ch. 6 - Prob. 5QPCh. 6 - Prob. 6QPCh. 6 - Prob. 7QPCh. 6 - Prob. 8QPCh. 6 - Prob. 9QPCh. 6 - Prob. 10QPCh. 6 - Prob. 11QPCh. 6 - Prob. 12QPCh. 6 - Prob. 13QPCh. 6 - Prob. 14QPCh. 6 - Prob. 15QPCh. 6 - Prob. 16QPCh. 6 - Prob. 17QPCh. 6 - Prob. 18QPCh. 6 - Prob. 19QPCh. 6 - Prob. 20QPCh. 6 - Prob. 21QPCh. 6 - Prob. 22QPCh. 6 - Prob. 23QPCh. 6 - Prob. 24QPCh. 6 - Prob. 25QPCh. 6 - Prob. 26QPCh. 6 - Prob. 27QPCh. 6 - Prob. 28QPCh. 6 - Prob. 29QPCh. 6 - Prob. 30QPCh. 6 - Prob. 31QPCh. 6 - Prob. 32QPCh. 6 - Prob. 33QPCh. 6 - Prob. 34QPCh. 6 - Prob. 35QPCh. 6 - Prob. 36QPCh. 6 - Prob. 37QPCh. 6 - Prob. 38QPCh. 6 - Prob. 39QPCh. 6 - Prob. 40QPCh. 6 - Prob. 41QPCh. 6 - Prob. 42QPCh. 6 - Prob. 43QPCh. 6 - Prob. 44QPCh. 6 - Prob. 45QP
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