Aphoton in a monochromatic beam of light has energy 3 ev. the wavelength is closest to: a) 4960 nm b) 1240 nm c) 413 nm d) 310 nm e) 4.8x10-19 m

Explanation:

It is given that,

Energy of the photon,

Let is the wavelength of the photon. The energy of a photon is given by :

So, the wavelength of the photon is . Hence, this is the required solution.

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a cold ice-tea.

pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015