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Calculate the energy of an infrared phot...

Calculate the energy of an infrared photon of wavelength `1.2mum`. (Given, Planck.s constant ,`h=6.63xx10^(-34)Js`)

Text Solution

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`E=hv=(hc)/(lamda)`
`rArr E=(6.63xx10^(-34)xx3xx10^(8))/(1.2xx10^(-6))`
`[becauselamda=1.2mum=1.2xx10^(-6)m]`
`therefore E=16.58xx10^(-20) J`
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