## If a magnifying glass has a power of 10.0 D, what is the magnification it produces when held 6.55 cm from an object?

Question

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## Answers ( )

Answer:The magnification of the magnifying glass is -2.9Explanation:The equation for power is given as:where,

P = Power = 10 D

f = focal length

Putting values in above equation, we get:(Conversion factor: 1 m = 100 cm)The equation for lens formula follows:where,

v = image distance

u = Object distance = 6.55 cm

Putting values in above equation, we get:Magnification (m) can be written as:Putting values in above equation, we get:Hence, the magnification of the magnifying glass is -2.9