Question:
The value of Planck's constant is $6.63 \times 10^{-34} Js$. The speed of light is $3 \times 10^{17} nm \, s^{-1}$. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of $6 \times 10^{15} \, s^{-1}$ ?
The value of Planck's constant is $6.63 \times 10^{-34} Js$. The speed of light is $3 \times 10^{17} nm \, s^{-1}$. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of $6 \times 10^{15} \, s^{-1}$ ?
Updated On: May 23, 2026
- 75
- 10
- 25
- 50
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The Correct Option is D
Solution and Explanation
$\lambda = \frac{C}{V} = \frac{3 \times 10^{17} nms^{-1}}{6 \times 10^{15} s^{-1}} = 50 nm $
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