The velocity of Planck's constant is 6.63 \times 10 - 34 J s. The velocity of light is 3.0 \times 10 8 m s - 1 . Which value is closest to the wavelength in nanometers of a quantum of light with frequency of 8 \times 10 15 s - 1 ?

Structure of Atom question

2003 · Q110

Structure of Atom question

2003 · Q110

View written solutionFree

Correct answer: C

$v$ = c/ $\lambda$

$\lambda$ = ${c \over v}$ = ${{3 \times {{10}^8}} \over {8 \times {{10}^{15}}}}$ = 37.5 $\times$ 10^-9 m

= 37.5 nm $\approx$ $4 \times {10^1}$ nm

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Structure of Atom question

2003 · Q110

Structure of Atom question

2003 · Q110

View written solutionFree

Correct answer: C

$v$ = c/ $\lambda$

$\lambda$ = ${c \over v}$ = ${{3 \times {{10}^8}} \over {8 \times {{10}^{15}}}}$ = 37.5 $\times$ 10^-9 m

= 37.5 nm $\approx$ $4 \times {10^1}$ nm