A Device Operates at a Frequency Of $7.7 \times 10 ^ { 14 }$

Multiple Choice

A device operates at a frequency of $7.7 \times 10 ^ { 14 }$ Hz. What is the wavelength of this radiation?

A) ?390 nm
B) $2.57 \times 10 ^ { 31 }$ nm
C) $2.58 \times 10 ^ { - 31 }$ nm
D) 0.153 nm
E) $5.11 \times 10 ^ { - 10 }$ nm