MHT CET · Physics · Ray Optics
Two points separated by a distance of 0.1 mm can just be seen in microscope when light of wavelength \(6000 Å\) is used. If the light of wavelength \(4800 Å\) is used, the limit of resolution will become
- A 0.8 mm
- B 0.12 mm
- C 0.10 mm
- D 0.08 mm .
Answer & Solution
Correct Answer
(D) 0.08 mm .
Step-by-step Solution
Detailed explanation
\(\begin{array}{ll} & \text { Limit of resolution (D) } \propto \lambda \\ \therefore \quad & \frac{\mathrm{d}_1}{\mathrm{~d}_2}=\frac{\lambda_1}{\lambda_2} \\ \therefore \quad & \frac{0.1}{\mathrm{~d}_2}=\frac{6000}{4800} \Rightarrow \mathrm{~d}_2=0.08 \mathrm{~mm}\end{array}\)
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