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1. Assertion: Myopia is the defect of vision in which a person cannot see the distant objects clearly.
Reason: This due to eye-ball being too short.
Reason: This due to eye-ball being too short.
2. Assertion: Concave mirrors are used as reflectors in torches, vehicle head-lights and in search lights.
Reason: When an object is placed beyond the centre of curvature of a concave mirror, the image formed is real and inverted.
Reason: When an object is placed beyond the centre of curvature of a concave mirror, the image formed is real and inverted.