calculate the wavelength frequency and wavenumber of a light wave whose period is ` 2.0 xx 10^(-10) s` .

Explanation

Time period (T ) `= 3xx10^(-10)s.`
Frequency `(v) =1/T =(1)/(3xx10^(-10)S)=3.33xx10^(9) s^(-1)`
` V=3.3xx10^(9)s^(-1)`
wavelength `( lamda ) = (c )/(v ) =(3xx10^(8)ms^(-1))/(3.3xx10^(9)s^(-1))`
`= lamda = 9xx10^(-2)m`
wave number `( vecv ) = (1)/(lamda)`
` vecv =(1)/(9xx10^(-2) m)`
` vecV = 11.11 m^(-1)`