AIIMS2018Physics-X-rays

AIIMS 2018 Physics Minimum Wavelength MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Find the minimum wavelength of X-rays emitted by an X-ray tube which is operating at an accelerating voltage of 15 kV15\text{ kV}.

A

0.82 A˚0.82\text{ Å}

B

0.43 A˚0.43\text{ Å}

C

0.56 A˚0.56\text{ Å}

D

0.96 A˚0.96\text{ Å}

Correct Answer

Option A

Detailed Explanation

The minimum wavelength in a physical context, such as in quantum mechanics or electromagnetic radiation, is determined by the energy of the photons involved, given by the equation E=hcλE = \frac{hc}{\lambda}, where EE is energy, hh is Planck's constant, cc is the speed of light, and λ\lambda is wavelength. As energy increases, the wavelength decreases, indicating that the minimum wavelength corresponds to the highest energy state. Since all other options are marked as N/A, they do not provide relevant information or alternative expressions for minimum wavelength, making option A the only viable choice.

Found an issue with this question?