Correct option is B
Hard X-rays are high-energy electromagnetic waves with energies ranging from 5 keV to 10 keV. These rays are capable of penetrating dense materials, making them useful in medical imaging, industrial inspection, and crystallography. Hard X-rays are distinguished from soft X-rays by their shorter wavelength and higher energy.
Information Booster
- X-rays are produced when high-energy electrons hit a metal target.
- Hard X-rays are used in CT scans and cancer therapy.
- Their wavelength ranges from 0.1 to 0.01 nanometers.
- Wilhelm Röntgen discovered X-rays in 1895.
- They are highly penetrating and require lead shielding for protection.
- X-rays can ionize atoms, causing biological damage.
Additional Knowledge
- 7 keV, 8 keV, and 9 keV: Fall within the general range of X-ray energy but not the complete range for hard X-rays.
- Soft X-rays have energies below 5 keV.
- Hard X-rays are often generated in synchrotrons for research purposes.
- They are also utilized in material science to study atomic structures.
