What Is the Photon Energy of Red Light Having a Wavelength

Multiple Choice

What is the photon energy of red light having a wavelength of $6.40 \times 10 ^ { 2 } \mathrm {~nm} ? \left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , h \right.$ $= 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s }$ )

A) $3.11 \times 10 ^ { - 19 } \mathrm {~J}$
B) $1.94 \times 10 ^ { - 19 } \mathrm {~J}$
C) $1.13 \times 10 ^ { - 19 } \mathrm {~J}$
D) $1.31 \times 10 ^ { - 19 } \mathrm {~J}$