Question

The objective of a microscope is immersed in a liquid of refractive index 1.5. If the semi-vertical angle of the cone of light rays of wavelength 600 nm from the object that fall on the objective is \(30^\circ\), then the minimum resolvable distance for this microscope is:

• A. \(610\;nm\)
• B. \(366\;nm\)
• C. \(488\;nm\)
• D. \(244\;nm\)

Hint:

For microscopes: \[ d=\frac{0.61\lambda}{NA}, \] where \[ NA=n\sin\theta. \]

Answer 1

The Correct Option is D