Structure Of Atom Ques 25
25. The value of Planck’s constant is $6.63 \times 10^{-34} Js$. The speed of light is $3 \times 10^{8} m s^{-1}$. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of $6 \times 10^{15} s^{-3}$ ?
[NEET 2013]
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75
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Solution:
$c=0\lambda$
$\lambda=\frac{c}{v}=\frac{3 \times 10^{8}}{6 \times 10^{15}}=5 \times 10^{-8} m$
BETA
