The energy of a photon is given as 3.03×10−19. The wavelength of the photon is

E=hcλ or λ=hcEλ=6.626×10−34Js×3×108ms−13.03×10−19J=6.56×10−7m or 656nm

The energy of a photon is given as 3.03×10−19. The wavelength of the photon is

E=hcλ or λ=hcEλ=6.626×10−34Js×3×108ms−13.03×10−19J=6.56×10−7m or 656nm

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The energy of a photon is given as $3 .03 \times 10^{- 19}$ . The wavelength of the photon is

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6.56 nm

65.6 nm

0.656 nm

656 nm

answer is D.

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Detailed Solution

$E = \frac{hc}{λ} or λ = \frac{hc}{E}$
$λ = \frac{6 .626 \times 10^{- 34} Js \times 3 \times 10^{8} {ms}^{- 1}}{3 .03 \times 10^{- 19} J} = 6 .56 \times 10^{- 7} m or 656 nm$

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