- #1
songoku
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- Homework Statement
- A laser emits photon of energy 5 eV with power of 0.01 W. How many photons are emitted per second?
a. 3.1 × 10^21
b. 5.0 × 10^18
c. 2.5 × 10^21
d. 4.0 × 10^14
e. 2.7 × 10^15
- Relevant Equations
- E = nhf
E = P.t
P.t = nhf
n/t = P/(hf) = 1.25 × 10^16
Something wrong with my working or I just pick (E) as answer? Thanks
n/t = P/(hf) = 1.25 × 10^16
Something wrong with my working or I just pick (E) as answer? Thanks