frequency's unit is Hz which mean cycles per second
given frequency * wavelength = speed of wave
speed of light = 3x10^8 m/s
wavelength = 680nm = 680x10^-9 m
frequency * 680x10^-9 m = 3x10^8 m/s
frequency = 3x10^8 / 680x10^-9
= 4.41x10^14 Hz
= 441x10^12 Hz
= 441 THz
which is the frequency for red light
Answer:
Giả định tại doanh nghiep và nghiệp vụ tương ing Công ty A khai thác cát sử dụng XD: Trong ký tinh thuế, công ty khai thác được 100.000m' ...
Explanation:
6 because you would take 3/4 / 1/8 and then continue to follow the reciprocal to get 24/4 which is 6.
Many people wanted to get jobs in factories for example and kids work now and they worked in horrible conditions and got very little pay
