Cone Cells and Distance Perception Quiz
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Questions and Answers

Match the following concepts with their definitions:

Rayleigh criterion = Condition for two point sources to be just resolvable Minimum angular separation = Smallest angle between two objects that can be distinguished by the eye Resolution inside the eye = Ability of the eye to distinguish between two closely spaced objects Cone cells diameter = The size of the photoreceptor cells responsible for color vision

Match the following terms with their correct descriptions:

Angle of distinct vision = The maximum angle within which an object can be seen clearly without blurring Fraunhofer Diffraction = A simplified version of diffraction that doesn't account for the effects of the aperture shape Single slit diffraction pattern = Pattern formed when light passes through a single narrow slit Huygen's Principle = Proposed explanation for diffraction where each point on a wavefront acts as a source of secondary wavelets

Match the following values with their corresponding measurements:

0.448 x 10^-2 m = Separation between maxima in a diffraction pattern 0.256 x 10^-2 m = Distance from central maximum to first minimum in a diffraction pattern 4.00 x 10^-5 m = Aperture width in a diffraction experiment 430.5 nm = Wavelength of a strontium vapour laser used in a diffraction setup

Match the following optical terms with their characteristics:

<p>Circular waves = Pattern emitted by a point source in a diffraction experiment Geometric optics = Study of light behavior using rays and straight lines Round aperture = 'Slit' in our eyes responsible for diffraction due to its shape Spherical waves = Wavefronts created according to Huygen's Principle</p> Signup and view all the answers

Match the following concepts with their practical implications:

<p>Wide aperture = Results in light not 'fanning out' significantly, like a door letting light through as a shaft Small slit size = Leads to significant fanning or spreading of light in a diffraction pattern Large aperture = Causes minimal fanning or spreading of light when passing through an opening Size of slit and light fanning = 'if size of slit 𝒂 is very small, then 𝒚𝒎𝒊𝒏 is large' - explanation for light behavior when passing through slits</p> Signup and view all the answers

What is the diameter of a cone cell in micrometers?

<p>3 μm</p> Signup and view all the answers

If a night driver's pupils have a diameter of 2 mm and the headlights of an approaching car are 1.5 m apart, how far away must the car be for the headlights to appear as one?

<p>490 meters</p> Signup and view all the answers

How does changing the aperture size affect the diffraction pattern?

<p>It narrows the diffraction pattern</p> Signup and view all the answers

What happens to resolving distance when the aperture size is doubled?

<p>It doubles</p> Signup and view all the answers

If a person can see a disk of diameter 6.0 cm from 50 cm away, what is the angle of distinct vision?

<p>0.12 radians</p> Signup and view all the answers

What happens to resolving two just resolvable light sources when your pupil diameter doubles?

<p>You can now resolve them from farther away</p> Signup and view all the answers

What is the resolving distance if you are 10 meters away from two just resolvable light sources and your pupil diameter is doubled?

<p>20 meters</p> Signup and view all the answers

What is the size of a disk that can be seen with distinct vision from a distance of 40 cm?

<p>4 cm</p> Signup and view all the answers

If two light sources are resolvable when you are 5 meters away with a certain pupil diameter, how far away can you be to just resolve them if your pupil diameter is halved?

<p>20 meters</p> Signup and view all the answers

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