The correct answer is option 2: "1 and 2 only."

Let`s break down each statement to understand why this is the correct answer:

1. The wavelength of visible light is more than that of X-rays:

This statement is true. Visible light has longer wavelengths compared to X-rays. Visible light wavelengths range from about 400 to 700 nanometers (nm), while X-ray wavelengths range from about 0.01 to 10 nanometers. Therefore, the wavelength of visible light is indeed more than that of X-rays.

2. The energy of X-ray photons is higher than that of UV light photons:

This statement is also true. Energy is directly proportional to frequency (or inversely proportional to wavelength). Since X-rays have shorter wavelengths than UV light, they have higher frequencies and, consequently, higher energy per photon. Therefore, the energy of X-ray photons is higher than that of UV light photons.

3. The energy of UV light photons is less than that of visible light photons:

This statement is false. UV light has shorter wavelengths and higher frequencies compared to visible light. According to the energy-frequency relationship, higher frequency equates to higher energy. Therefore, the energy of UV light photons is higher than that of visible light photons.

Since statements