A Gamma Ray Has a Wavelength Of $5.0 \times 10 ^ { - 14 } \mathrm {~m}$

Multiple Choice

A gamma ray has a wavelength of $5.0 \times 10 ^ { - 14 } \mathrm {~m}$ . The frequency of this wave is

A) $6.0 \times 10 ^ { 21 } \mathrm {~Hz}$
B) $6.0 \times 10 ^ { 20 } \mathrm {~Hz}$
C) $3.0 \times 10 ^ { 21 } \mathrm {~Hz}$
D) $15 \times 10 ^ { 21 } \mathrm {~Hz}$