Optics 6 Question 9
10. The resolving power of electron microscope is higher than that of an optical microscope because the wavelength of electrons is than the wavelength of visible light.
(1992, 1M)
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Solution:
- In Young’s double slit experiment, the condition of bright fringe and dark fringe are,
for bright fringes (maxima), path difference
for dark fringes (minima),
path-difference
For the given question, distance between slits
$$
(d)=0.320 mm $$
Wavelength of light used
Angular range for bright fringe
Hence, for bright-fringe,
Here,
