The eye can detect `5xx10^(4)` photons `(m^2s)^(-1)` of green light (`lamda=5000A)`, whole ear can detect `10^(-13)Wm^(2)` . As a power detector, which is more sensitive and by what factor?A. Eye is more sensitive and by a factor of 5.00B. Ear is more sensitive by a factor of 5.00C. Both are equally sensitiveD. Eye is more sensitive by a factor of `10^(-1)`

The eye can detect `5xx10^(4)` photons `(m^2s)^(-1)` of green light (`

1.	The eye can detect `5xx10^(4)` photons `(m^2s)^(-1)` of green light (`lamda=5000A)`, whole ear can detect `10^(-13)Wm^(2)` . As a power detector, which is more sensitive and by what factor?A. Eye is more sensitive and by a factor of 5.00B. Ear is more sensitive by a factor of 5.00C. Both are equally sensitiveD. Eye is more sensitive by a factor of `10^(-1)`
Answer» Correct Answer - A Energy received by the eye, `E=(nhc)/(lamda)` `=(5xx10^(94)xx6.610^(-34)xx3xx10^(8))/(5000xx10^(-10))` `=0.2xx10^(-13)Wm^(-2)` So, eye in more sensitive by a factor of `(1)/(0.200)=5.00`

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