Transparent medium is one :a)Which allows light to pass throughb)Which...
A transparent medium is a material that partially allows light to pass through.
When light encounters a transparent medium, it can penetrate the material and transmit through it.
Examples of transparent mediums include glass, water, and air.
Transparent mediums are essential for various applications such as optics, windows, and lenses.
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Transparent medium is one :a)Which allows light to pass throughb)Which...
Transparent medium is one :a)Which allows light to pass throughb)Which...
Explanation:
When the eye is focused on an object very far away, the focal length of the eye-lens is maximum. This is because:
- The ciliary muscles, which control the shape of the lens, are relaxed when the eye is looking at a distant object.
- When the ciliary muscles are relaxed, the lens becomes thin and less curved.
- A thin and less curved lens has a longer focal length, which means that it can focus light from distant objects onto the retina.
Therefore, when the eye is focused on a distant object, the eye-lens is at its maximum focal length.
Key Points:
- Focal length of the eye-lens is maximum when the eye is focused on a distant object.
- This is because the ciliary muscles are relaxed, causing the lens to become thin and less curved.
- A thin and less curved lens has a longer focal length, which is necessary to focus light from distant objects onto the retina.