From fig 32-2 approximate the (a) smaller and (b) larger wavelength at which the eye of a standard observer has half the eye's maximum sensitivity . What are the (c ) wavelength (d) frequency and ( e) period of the light at which the eye is the most sensitive ?

Explanation

(a) 515 nm , (b) 610 nm (c ) 555 nm , (d) `5.41xx10^(14)` Hz , ( e) `1.85 xx10^(-15)` s