What is the power of a concave lens whose focal length is -75 cm?
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HEYA GM ❤
★ POWER = 1/F (metres)
POWER = 1/F (metres) » POWER = 100 / -75 = -(4/3) = 1.33 DIOPTRES.
POWER = 1/F (metres) » POWER = 100 / -75 = -(4/3) = 1.33 DIOPTRES.TQ ❤ ❤
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2
Answer:
-1.33D
Explanation:
hope you get it
the formula is 1/f
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