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lisov135 [29]
2 years ago
10

Can u pls answer 22, 23, 24

Chemistry
1 answer:
natulia [17]2 years ago
6 0

Answer:

22 - b, 23- A, 24- a

Explanation:

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The focal length of the mirror is 15 cm

From the question given above, the following data were obtained:

Object distance (u) = 30 cm

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The focal length of the mirror can be obtained as follow:

\frac{1}{f} = \frac{1}{v} + \frac{1}{u} \\\\\frac{1}{f} = \frac{1}{30} + \frac{1}{30}\\\\\frac{1}{f} = \frac{2}{30} \\\\\frac{1}{f} = \frac{1}{15} \\\\

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Therefore, the focal length of the mirror is 15 cm

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