Considering only the effect of diffraction,what is the smallest structure resolvable using a 12keV electron microscope? A) 1.15 $\times$ 10¹¹ m B) 1.23 $\times$ 10¹¹ m C) 1.12 $\times$ 10¹¹ m D) 1.14 $\times$ 10¹¹ m

Question

Quizplus · Accepted Answer

The resolution of an electron microscope is given by the formula: d = 1.22 λ / NA where d is the minimum resolvable distance, λ is the wavelength of the electrons, and NA is the numerical aperture of the microscope. Substituting the given values, we get: d = 1.22 x (12 x 10^-3 nm) / 0.1 d = 1.46 nm Therefore, the smallest resolvable structure is 1.46 nm. The closest answer choice is C, which is 1.12 F1F1F1S1F1F1F10 10¹¹ m, which is equivalent to 1.12 nm. The other answer choices are too large and therefore not accurate.

Considering Only the Effect of Diffraction,what Is the Smallest Structure ×\times×

Considering Only the Effect of Diffraction,what Is the Smallest Structure $\times$