The pupil of a cat's eye narrows to a slit width of 0.5 mm in daylight.What is the angular resolution of the cat's eye in daylight ($\lambda$= 500 nm)?

Question

Quizplus · Accepted Answer

The angular resolution can be calculated using the formula θ = 1.22 * (λ/D), where λ is the wavelength (500 nm or 500 x 10^-9 m) and D is the slit width (0.5 mm or 0.5 x 10^-3 m). Substituting these values gives θ ≈ 1.22 * (500 x 10^-9 / 0.5 x 10^-3) ≈ 1.22 * 10^-3 radians.

The Pupil of a Cat's Eye Narrows to a Slit λ\lambdaλ

The Pupil of a Cat's Eye Narrows to a Slit $\lambda$