Question Detail
Question
Based on the resolving power formula RP = 1.22λ / D, if the diameter of the telescope's objective (D) increases, what happens to the numerical value of the resolving power (RP)?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The formula RP = 1.22λ / D shows that RP is inversely proportional to D. If D (the diameter) increases, the denominator gets larger, causing the overall value of RP to decrease. A smaller numerical value of RP indicates a better ability to distinguish closely spaced objects (i.e., improved resolution).
Hint
Consider the relationship between D and RP in the formula (inverse or direct proportionality).