define any two rules of concave lens
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Rules for obtaining images formed by concave lens
Rule 1: A ray of light parallel to the principal axis of the concave lens appears to be coming from focus after refraction through the lens. Rule 2: A ray of light passing through the optical centre of the concave lens goes straight after refraction through the lens
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Rules for obtaining images formed by concave lens-
Rule 1: A ray of light parallel to the principal axis of the concave lens appears to be coming from focus after refraction through the lens.
Rule 2: A ray of light passing through the optical centre of the concave lens goes straight after refraction through the lens.
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