12. A 10 mH inductor and a 100 a resistor are connected in parallel. The circuit is supplied with 24 VAC 2,000 Hz. What's the impedance (rounded) of the circuit?
A. 57.382
B. 108.7122
C. 78.23 22
D. 98.16 22

answer; i believe that the correct answer is (d) a very small amount of mass

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m