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The energy of a photon wavelength k = 1...

The energy of a photon wavelength `k = 1` meter is (Planck's constant `= 6.625 xx 10^(-34)` Js, speed of light = `3 xx 10^(8) m//s`)

A

`1.988 xx 10^(-23) J`

B

`1.988 xx 10^(-28) J`

C

`1.988 xx 10^(-30) J`

D

`1.988 xx 10^(-25) J`

Text Solution

Verified by Experts

The correct Answer is:
A
`E = (hc)/(lambda) = (6.02 xx 10^(-34) xx 3 xx 10^(8))/(1)`
`E = 1.988 xx 10^(-23)` J
` E = 1.988 xx 10^(-23) J`
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