Two points, separated by a distance of ${\rm{0}}{\rm{.1}}\,\,{\rm{mm}}$, can just be inspected on a microscope when light of wavelength $6000\,\mathop {\rm{A}}\limits^ \circ $ is used. If the light of wavelength $4800\,\mathop {\rm{A}}\limits^ \circ $ is used, the limit of resolution is

${\rm{0}}{\rm{.08}}\,\,{\rm{mm}}$

${\rm{0}}{\rm{.8}}\,\,{\rm{mm}}$

${\rm{0}}{\rm{.1}}\,\,{\rm{mm}}$

${\rm{0}}{\rm{.04}}\,\,{\rm{mm}}$

JEE PHYSICS MCQ: WAVE OPTICS

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Application +4 | -1

Two points, separated by a distance of

\mathrm{0}\mathrm{.1}\,\,\mathrm{mm}

, can just be inspected on a microscope when light of wavelength

6000\,\mathop \mathrm{A}\limits^ \circ

is used. If the light of wavelength

4800\,\mathop \mathrm{A}\limits^ \circ

is used, the limit of resolution is

View answer and explanation

Correct option: B

\mathrm{0}\mathrm{.08}\,\,\mathrm{mm}

Option B (

\mathrm{0}\mathrm{.08}\,\mathrm{mm}

) is correct because the limit of resolution is directly proportional to the wavelength of light used.