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Brut [27]
2 years ago
6

A 7.5 cm object is 14 cm from a concave lens, which has a focal length of –7 cm. What is the distance of the image from the lens

? Round your answer to the nearest whole number. 5 cm –5 cm 14 cm –14 cm
Physics
2 answers:
Pavel [41]2 years ago
6 0

Answer:

-5 cm

Explanation:

We can use the lens equation:

\frac{1}{f}=\frac{1}{p}+\frac{1}{q}

where

f = -7 cm is the focal lenght

p = 14 cm is the distance of the object from the lens

q is the distance of the image from the lens

Solving the equation for q, we find

\frac{1}{q}=\frac{1}{f}-\frac{1}{p}=\frac{1}{-7 cm}-\frac{1}{14 cm}=-\frac{3}{14 cm}\\q=\frac{-14 cm}{3}=-4.67 cm \sim -5 cm

Arte-miy333 [17]2 years ago
4 0

Answer:

-5 cm

Explanation:

Just took it : )

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Water, of density 1000 kg/m3, is flowing in a drainage channel of rectangular cross-section. The width of the channel is 15 m, t
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Answer:

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The Americium nucleus, 241 95 Am, decays to a Neptunium nucleus, 237 93 Np, by emitting an alpha particle of mass 4.00260 u and
saveliy_v [14]

Answer:

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Explanation:

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