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Eye detects the green light (lamda=5000Å),5xx10^(4) photons per square metre per second and the ear can detect 10^(-13) watt per square metre. In form of power 10^(-13) watt per square metre. In form of power detector, the eye is sensitive in comparison to the ear by |
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Answer» 2 times `=((6.6xx10^(-34))(3XX10^(8)))/((5000xx10^(-10)))=(3.96xx10^(-19))J` Energy received per second `=(3.96xx10^(-19))(5xx10^(4))` `=1.98xx10^(-14)W//m^(2)` Sensitivity of eye in COMPARISON to ear= `=("Power per square METRE detected by ear")/("Energy received per second")` `=(10^(-13))/((1.98xx10^(-14)))=5` |
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