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Refraction of Light by concave lens
1. A ray of light ravelling parallel to principal axis of concave lens, after refraction from the concave lens, appears to passes through focus.
2. A Ray of light appearing to pass through the focus of a concave lens, after refraction from the concave lens, travels parallel to principal axis.
3. A Ray of light passing from the optical centre of a concave lens travels in a straight line without deviation.
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