The energy of photon of visible light with maximum wavelength in $e V$ is:

1

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1.6

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3.2

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7

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Solution

The correct option is B $1.6$
Maximum wavelength of visible light (i.e. of red light) is $7800 0 A$ .
Energy of red light $= E = \frac{h_{c}}{λ}$
$E = \frac{12400}{7800} V 0 A$
$E = 1.6 e V$

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The energy of photon of visible light with maximum wavelength in eV is:

The correct option is B 1.6Maximum wavelength of visible light (i.e. of red light) is 78000A.Energy of red light =E=hcλE=124007800V0AE=1.6eV

The energy of photon of visible light with maximum wavelength in $e V$ is:

The correct option is B $1.6$
Maximum wavelength of visible light (i.e. of red light) is $7800 0 A$ .
Energy of red light $= E = \frac{h_{c}}{λ}$
$E = \frac{12400}{7800} V 0 A$
$E = 1.6 e V$