Answer:
[tex]4.7 * 10^{-7} meters[/tex]
Explanation:
Angstrom can be defined as a metric unit of length for used for the measurement of the wavelength of light (optics) such as visible light, x-rays, ultraviolet light, gamma rays etc. The symbol for Angstrom is "A" and it is named after the 19th century physicist from Sweden, named Anders Jonas Angstrom.
Given the following data;
Wavelength of spectral line = 4700A
To convert this value to meters;
One Angstrom is mathematically equal to [tex] 10^{-10} meters [/tex]
[tex] 1 Angstrom = 10^{-10} meters[/tex]
[tex] 4700 Angstrom = X \; meters[/tex]
Cross multiplying, we have;
[tex] X = 4700 * 10^{-10}[/tex]
X = [tex]4.7 * 10^{-7} meters[/tex]
Therefore, 4700A is equal to 4.7e-7 or 0.00000047 meters.