@min- H = 120 m Object 1 Object 2 The Rayleigh criterion can be used to estimate the smallest distances that can separate two objects on the ground, if a person on a hang glider is to have any hope of distin- guishing one object from the other.

@min- H = 120 m Object 1 Object 2 The Rayleigh criterion can be used to estimate the smallest distances that can separate two objects on the ground, if a person on a hang glider is to have any hope of distin- guishing one object from the other.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter3: Interference

Section: Chapter Questions

Problem 3.1CYU: Check Your Understanding In the system used in the preceding examples, at what angles are the first...

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Question

The pupil of an eagle’s eye has a diameter of D = 6.2 mm and has about the same refractive index in its eye as does a human eye. The average index of refraction of the material in the eye is approximately n = 1.36. The eagle spots two field mice are on the ground from an alitude of H = 120 m. the eagle sees them as one unresolved object and dives toward them at a speed of 22 m/s. Assume that the eagle’s eye detects light that has a wavelength of 555 nm in vacuum.

Determine how far apart the two mice must be on the ground for the eagle to see the mice as separate objects?

@min-
H = 120 m
Object 1 Object 2
The Rayleigh criterion
can be used to estimate the smallest
distances that can separate two objects
on the ground, if a person on a hang
glider is to have any hope of distin-
guishing one object from the other.

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