Recent content by dymondahlis

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    High School Magnetic field outside a conductor

    Why is the magnetic field outside a conductor zero?
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    Number of photons emitted from a light bulb entering the eye

    pi*r^2 i assumed it would've been harder to find. thanks so much!
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    Number of photons emitted from a light bulb entering the eye

    Homework Statement A 100W bulb emits light of a single wavelength 6000*10^-10 m. If light spreads out uniformly in space, how many photons enter your eye per second if you are at a distance 1m from the bulb and the pupil diameter is about 1mm? Homework Equations E = hc/lambda The...