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Stella [2.4K]
3 years ago
7

Adaptations are _________.

Biology
1 answer:
statuscvo [17]3 years ago
4 0
The answer is D. because adaptations means changes in an organisms behavior and structure its environmental change and more it does increase population and variation of that plant or animal which increases its chances of survival
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The image of an object which is 10cm from a lens is formed on the same side as the object. If the image is 10cm behind the objec
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Answer:

Focal length is 6.67 cm.

Explanation:

Object distance, u, from the lens = 10 cm

Image distance, v, to the lens = 10 cm + 10 cm

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Apply the lens formula to determine the focal length, f, of the lens.

\frac{1}{f} = \frac{1}{u} + \frac{1}{v}

 = \frac{1}{10} + \frac{1}{20}

    = \frac{2 + 1}{20}

\frac{1}{f}  = \frac{3}{20}

Find the inverse of both sides, so that;

f = \frac{20}{3}

  = 6.67

f = 6.67 cm

The focal length of the lens is 6.67 cm.

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