1(vii)
A concave lens diverges light because its upper and lower parts act as:
- (a)inverted prisms
- (b)upright prisms
- (c)upright and inverted prisms respectively
- (d)inverted and upright prisms respectively
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inverted and upright prisms respectively
Reason — The upper and lower parts of a concave lens act as prisms with their bases upwards and downwards respectively. Each bends light towards its base, causing the rays to diverge.
