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andrew-mc [135]
1 year ago
11

Optics of the eye: the closest object that a typical young person with normal vision can focus on clearly is closest to:______.

Physics
1 answer:
Natali [406]1 year ago
5 0

The human eye is one of the most valuable sense organ. The closest object that a typical young person with normal vision can focus closest to is 25 cm

The lens in the eye forms the image on the retina. The image formed is real and inverted. The retina is a very delicate membrane containing numerous light sensitive cells.

This light sensitive cells gets activated when light falls on it and generates electric signals. These electric signals are sent to the brain via the optic nerves present in the eye. The brain finally processes these signals and thus we see the object clearly.

The ability of the lens of the eye to adjust its focal length accordingly is called the power of accommodation,

The minimum distance, at which the object can be seen clearly without any strain is called the least distance of distinct vision.

To see an object clearly without any strain is when we place it at about 25 cm from the eye.

Tolearn more about optics of the eye : brainly.com/question/22371574

#SPJ4

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Answer:

w = 4,786 rad / s ,  f = 0.76176 Hz

Explanation:

For this problem let's use the concept of angular momentum

       L = I w

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Initial Before sticking

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Final after coupling

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      L₀ = L_{f}

      I₂ w₂ = (I₁ + I₂) w

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Let's reduce the units to the SI System

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Angular velocity and frequency are related.

      w₂ = 2 π f₂

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Let's replace

       w = w₂ (½ M₂ R₂²) / (½ M₁ R₁² + ½ M₂ R₂²)

       w = w₂ M₂ R₂² / (M₁ R₁² + M₂ R₂²)

Let's calculate

      w = 20.94 8 0.40² / (12 0.60² + 8 0.40²)

      w = 20.94 1.28 / 5.6

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      w = 2π f

      f = w / 2π

      f = 4.786 / 2π

      f = 0.76176 Hz

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