The power of lens is -5D
A) Find it's focal length
B) Name the type of lens
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HEEY MATE ❤️❤️❤️
HERE IS UR ANSWER...
p = -5D
so it's a concave lens ( since it's power is -ve)
WKT,
P = 1/f
so 1/f = -5
f = 1/-5
f = 0.2 m
or
f = 20cm
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