Question

An ultraviolet light having a wavelength of 375nm is required to treat a dermatology patient. Express this in metre

Answer 1

To convert the wavelength of ultraviolet light from nanometers to meters, multiply the wavelength in nanometers (375 nm) by 10^-9 to get 3.75 × 10^-7 meters.

Step-by-step explanation:

To convert the wavelength of ultraviolet light from nanometers (nm) to meters (m), we use the conversion factor that 1 nm equals 10-9 meters. Therefore, a wavelength of 375 nm can be expressed in meters as follows:

Wavelength in meters = wavelength in nanometers × conversion factor

Wavelength in meters = 375 nm × 10-9 m/nm

Wavelength in meters = 3.75 × 10-7 meters

Thus, for the treatment of the dermatology patient, the ultraviolet light's wavelength of 375 nm is equivalent to 3.75 × 10-7 meters.