NEET · Chemistry · STD 11 - 2. structure of atom
Calculate the energy in joule corresponding to light of wavelength \(45\ nm.\) (Planck's constant, \(h=6.63 \times 10^{-34} \ J \ s,\) speed of light, \(c=3 \times 10^8 \ m \ s^{-1}\))
- A \(6.67 \times 10^{15}\)
- B \(6.67 \times 10^{11}\)
- C \(4.42 \times 10^{-15}\)
- D \(4.42 \times 10^{-18}\)
Answer & Solution
Correct Answer
(D) \(4.42 \times 10^{-18}\)
Step-by-step Solution
Detailed explanation
The wavelength of light is related to its energy by the equation, \(E=\frac{h c}{\lambda} \cdot(E=h v)\)
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