Two stars, P and Q, are observed from Earth - Edexcel - A-Level Physics - Question 3 - 2023 - Paper 2
Question 3
Two stars, P and Q, are observed from Earth. The intensity of radiation from P is less than that from Q. The parallax angle for P is greater than that for Q.
Which ... show full transcript
Worked Solution & Example Answer:Two stars, P and Q, are observed from Earth - Edexcel - A-Level Physics - Question 3 - 2023 - Paper 2
Step 1
P is closer than Q
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Answer
Since the intensity of radiation from P is less than that from Q, while the parallax angle for P is greater, this indicates that P is closer to Earth but is less luminous. Thus, the correct answer is that the luminosity of P is less than Q.
