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Two lenses are made from the same shape of glass blank… | StemPy Lab
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Two lenses are made from the same shape of glass blank. The first is made of glass with a higher refractive index. Which statement is correct for lenses in air?
Physics
Medium
High School (11–12)
Optics
Created by
StemPy Lab
Two lenses are made from the same shape of glass blank. The first is made of glass with a higher refractive index. Which statement is correct for lenses in air?
The lens of higher index has the shorter focal length, because
(
n
−
1
)
(n-1)
(
n
−
1
)
is larger
The lens of higher index has the longer focal length, because it is denser
Both have the same focal length, because the shape is the same
The focal length depends on the index only for a concave lens
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