Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Resolving power of reflecting type telescope increases with (1) decrease in wavelength of incident light (2) increase in wavelength of incident light (3) increase in diameter of objective mirror (4) None of the aboveA) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: D
Solution :
Resolving power of telescope\[=\frac{D}{1.22\lambda }\] It can be increased by increasing D and decreasing\[\lambda \].
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