TS EAMCET · Physics · Ray Optics
Wavelength of light used in an optical instruments are \(\lambda_1=4000 Å\) and \(\lambda_2=5000 Å\), then the ratio of their respective resolving powers (corresponding to \(\lambda_1\) and \(\lambda_2\) ) is
- A \(3: 5\)
- B \(9: 1\)
- C \(4: 5\)
- D \(5: 4\)
Answer & Solution
Correct Answer
(D) \(5: 4\)
Step-by-step Solution
Detailed explanation
As we know that, Resolving power of optical instrument, \(\mathrm{RP}=\frac{2 \mu \sin \theta}{1.22 \lambda} \Rightarrow \mathrm{RP} \text { or } R \propto \frac{1}{\lambda}\) Hence, ratio of resolving power of two instruments is…
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