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It takes some time for rhodopsin to split into scotopsin and retinal (bleaching) and release of transmitter passing nerve impulse via bipolar and ganglion cells to the optic nerves. This is a case of adaptation. It differs from accomodations which is a reflex mechanism by which the focus of the eye change to make the images of distant and near objects sharp on the retina.

1. Adaptation is the process of focusing on distant objects.
2. Adaptation is the process of focusing on near objects.
3. Adaptation is the process of rhodopsin splitting and nerve impulse transmission.
4. Adaptation is the process of changing the shape of the lens.

Correct answer: Adaptation is the process of rhodopsin splitting and nerve impulse transmission.

Solution

Adaptation refers to the retinal response to light, especially rhodopsin bleaching and the resulting signaling changes in photoreceptors. Focusing near or far is accommodation, which changes lens shape, not the light-detection process.

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