The human eye has a particle called 11-cis-retinal that adjustments conformation when struck with light of adequate power. The modification in conformation sets off a collection of occasions that leads to an electric signal being sent out to the mind. The minimal power needed to alter the conformation of 11-cis-retinal within the eye has to do with 164 kJ/mole. Compute the lengthiest wavelength noticeable to the human eye.

Service:

Power (E) = 164 kJ/mole

E = 164 kJ/mole = 164 kJ/ 6.023 x 10 ²³ = 2.72 x 10 ⁻²² kJ = 2.72 x 10 ⁻¹⁹ J

Planck"s consistent = 6.6 x 10 ⁻³⁴ J s,

Rate of light = 3.00 x 10 ⁸ m/s

Allow the called for wavelength be λ.Formula Made use of: E=

hc/ λor, λ = hc/ E or, λ = (6.6 x

10 ⁻³⁴ J s) × (3.00 x 10 ⁸ m/s)/ (2.72 x 10 ⁻¹⁹ J)

or, λ = 7.28 x 10 ⁻⁷ m

or, λ = (7.28 x 10 ⁻⁷ m) ×( 1.0 x 10 ⁹ nm/ 1.0 m)

or, λ = (7.28 x 10 ² nm)

or, λ = 728 nm

Thus, the needed wavelength will certainly be 728 nm.


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