Question 358: Dual Nature of Matter and Radiation

Question

A parallel beam of fast moving electrons is incident normally on a narrow slit. If the speed of the electrons is decreased, the angular width of central maxima

Accepted Answer

Angular width of central maxima is proportional to wavelength.
$$ \lambda=\frac{h}{m v} $$
when, $v$ decreases, $\lambda$ increases.

Answer

increases

Answer

decreases

Answer

remains same

Answer

None of these

Dual Nature of Matter and Radiation

A parallel beam of fast moving electrons is incident normally on a narrow slit. If the speed of the electrons is decreased, the angular width of central maxima

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