These are features of higher energy level and shorter wavelengths

The correct option is ultraviolet radiation.

To understand why ultraviolet radiation is characterized by a higher energy level and shorter wavelengths, we can analyze the fundamental relationship between the wavelength of electromagnetic radiation and its energy.

The energy of an electromagnetic wave is inversely proportional to its wavelength. This relationship is described by the Planck-Einstein relation:

$$E=\frac{hc}{\lambda }$$

where:
- E represents the energy of the photon,
- h is Planck's constant,
- c is the speed of light, and
- λ (lambda) represents the wavelength.

According to this equation, as the wavelength (λ) becomes shorter (decreases), the energy (E) increases. Conversely, longer wavelengths correspond to lower energy levels.

Let's compare the electromagnetic options provided in the question:
- Ultraviolet (UV) radiation has wavelengths ranging from approximately 10 nm to 400 nm, which are shorter than those of visible light, giving it a higher energy level.
- Infrared (IR) radiation has wavelengths ranging from approximately 700 nm to 1 mm, which are longer than those of visible light, giving it a lower energy level.

Note: Alpha and beta radiation are forms of particulate radiation (consisting of helium nuclei and high-speed electrons or positrons, respectively) rather than electromagnetic waves of the light spectrum.

Therefore, ultraviolet radiation is the correct answer because it has shorter wavelengths and higher energy levels than infrared radiation.