Study for the Missouri EFDA Basic Skills Test. Use flashcards and multiple choice questions, each with hints and explanations. Prepare effectively for your certification exam!

Multiple Choice

The shorter the wavelength of an x-ray, the:

Energy of a photon is tied to its wavelength, with shorter wavelengths carrying more energy. This comes from E = hc/λ, where E is energy, h is Planck’s constant, c is the speed of light, and λ is the wavelength. As λ decreases, E increases, so shorter-wavelength x-rays are more energetic. They have greater penetrating power and ionizing ability. The energy does change with wavelength, not stay the same, so the option stating no effect is incorrect. And exposure time isn’t directly dictated by wavelength alone—it's influenced by tube current, exposure time, filtration, and image requirements, not just photon energy.

Energy of a photon is tied to its wavelength, with shorter wavelengths carrying more energy. This comes from E = hc/λ, where E is energy, h is Planck’s constant, c is the speed of light, and λ is the wavelength. As λ decreases, E increases, so shorter-wavelength x-rays are more energetic. They have greater penetrating power and ionizing ability. The energy does change with wavelength, not stay the same, so the option stating no effect is incorrect. And exposure time isn’t directly dictated by wavelength alone—it's influenced by tube current, exposure time, filtration, and image requirements, not just photon energy.