The energy of a photon corresponding to the visible light of maximum wavelength is approximately

Question

The energy of a photon corresponding to the visible light of maximum wavelength is approximately (A) 1 e V (B) 1.6 e V (C) 3.2 e V (D) 7 e V

Tardigrade Admin · Accepted Answer

Energy of photon, E = ( 12375 / λ ( in mathringA ) ) e V For red light the wavelength is maximum. ∵ λR = 7900 mathringA ∴ E = ( 12375 / 7900 ) e V = 1.5 e V ≃ 1.6 e V

Q. The energy of a photon corresponding to the visible light of maximum wavelength is approximately

1 e V

1.6 e V

3.2 e V

7 e V

Energy of photon, E = $\frac{12375}{λ ( in A ˚ )} e V$
For red light the wavelength is maximum.
$∵ λ_{R} = 7900 \overset{˚}{A}$
$∴ E = \frac{12375}{7900} e V$
= 1.5 e V $≃$ 1.6 e V

Q. The energy of a photon corresponding to the visible light of maximum wavelength is approximately

1 e V

1.6 e V

3.2 e V

7 e V

Energy of photon, E = λ(inA˚)12375​eV For red light the wavelength is maximum. ∵λR​=7900A˚ ∴E=790012375​eV = 1.5 e V ≃ 1.6 e V

Energy of photon, E = $\frac{12375}{λ ( in A ˚ )} e V$
For red light the wavelength is maximum.
$∵ λ_{R} = 7900 \overset{˚}{A}$
$∴ E = \frac{12375}{7900} e V$
= 1.5 e V $≃$ 1.6 e V