1.

Threshold wavelength for metal is 10,000 Å. If light of wavelength 5461 Å is incident on it, then stopping potential is 1.02 V, then value of Planck's constant is :

Answer»

`6.45xx10^(-34)`J-sec
`6.54xx10^(-34)`J-sec
`6.60xx10^(-3)`J-sec
`6.67xx10^(-34)`J-sec

ANSWER :C


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