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Calculate the energies of the photons as...

Calculate the energies of the photons associated with the following radiation`:`
radio waves of 10m

Text Solution

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Wavelength of radio waves `lambda_(r ) = 10m`
Energy of the photons associated with the radiation E = ?
`E = hv = ( hc)/( lambda)`
c-Velocity of light ` - 3 xx 10^(8) ms^(-1)`
h-Planck constant `- 6.626 xx 10^(-34) Js`
`E_(r ) = ( hc)/( lambda_( r )) = ( 19.878 xx 10^(-26))/( 10)`
`= ( 19.878 xx 10^(-27))/( 1.6 xx 10^(-19)) eV =12.424 xx 10^(-8)`
`E_(r ) = 1.24 xx 10^(-7) eV`
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