1) What is the frequency of radiation whose wavelength is 14.25 A ?

Question

2)What is the wavelength of radiation that has a frequency of 5.4 1012 s-1?

3) Would the radiations in part (a) or part (b) be detected by an X-ray detector?

4) What distance does electromagnetic radiation travel in 21 fs?


if someone could jus lead me in the right direction to solving these

Answer 1

1)Wavelength=speed of light/frequency
2)Wavelength=speed of light/frequency
3)yes
4)i dont know exactly.
(Speed of light=3*(10)8 m/sec)

Answer 2

1) 14.25A= 14.25*10^-10m
frequency = c/wavelength= 3*10^8/14.25*10^-10=2.105*10^17Hz

2) wavelength= c/ frequency =3*10^8/5.4*10^12=5.56*10^-6m

3) in part a ) the rdiation is at the limit of detection , part b no it is an infrared radiation

4) the speed is 3*10^8 The distance is x= speed*time
x= 3*10^8 * 21*10^15 =6.3*10^-6m