Question 154: Ray Optics

Question

A scientist is observing a bacteria through a compound microscope. For better analysis and to improve its resolving power he should. (Select the best option)

Accepted Answer

Resolving power of microscope $$ = \left( {{{2n\sin 	heta } \over \lambda }} ight)$$
$$n\sin 	heta $$ = Numerical aperture
$$n$$ is the refractive index of medium.

Answer

Decrease the focal length of the eye piece.

Answer

Increase the wave length of the light

Answer

Increase the refractive index of the medium between the object and objective lens

Answer

Decrease the diameter of the objective lens

Ray Optics

A scientist is observing a bacteria through a compound microscope. For better analysis and to improve its resolving power he should. (Select the best option)

Choose the correct answer: