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P-1 Lenses — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Lenses1 Mark
Question
When do you say that a person is colour blind?
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Answer

When a person is unable to distinguish between certain colours, he is said to be colour blind.
[Note: (i) Except for being colour-blind, their eyesight is normal, (ii) Rod-shaped cell ≡ rod-like cell, cone-shaped cell = Conical cell.]

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