1.

The value of Planck's constant is 6.63xx10^(-34) Js. The velocity of light is 3xx10^(8) m//sec. Which value is closest to the wavelength of a quantum of light with frequency of 8xx10^(15) sec^(-1)?

Answer»

`5XX10^(-18) m`
`4xx10^(-8) m`
`3xx10^(7) m`
`2xx10^(-25) m`

ANSWER :B


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