Answer:
5.3 x 10⁻⁷ m
Explanation:
Data Given
frequency = 5.7 x 10¹⁴ Hz.
Convert Hz to per seconds (s⁻¹)
1 Hz = 1 s⁻¹
5.7 x 10¹⁴ Hz = 1 x 5.7 x 10¹⁴ = 5.7 x 10¹⁴ s⁻¹
wavelength =?
Solution:
Formula used to calculate wavelength
f = c/λ
rearrange the above equation
λ = c/f ........(1)
Where:
c = speed of light = 3 x 10⁸ ms⁻¹
λ= wavelength
put the values in above equation 1
λ = 3 x 10⁸ ms⁻¹ / 5.7 x 10¹⁴ s⁻¹
λ = 5.3 x 10⁻⁷ m
So the wavelength of light = 5.3 x 10⁻⁷ m
