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Klio2033 [76]
3 years ago
8

If a lens has a power of -14.50, what is the focal length in mm?

Physics
1 answer:
ra1l [238]3 years ago
5 0

Answer:

Focal length of the lens, f = - 68 mm

Explanation:

Given that,

Power of a lens, P = -14.50 D

We need to find the focal length of the lens. We know that the focal length and the power of lens has inverse relationship. Mathematically, it is given by :

f=\dfrac{1}{P}

f is the focal length of the lens

f=\dfrac{1}{-14.50}

f = -0.068 m

or

f = -68 mm

So, the focal length of the lens is (-68 mm). Hence, this is the required solution.

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The plastic jars of the air capacitor represent the parallel conducting plates.

<h3>What is Air capacitor?</h3>

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This capacitor stores and releases electricity in the circuit using;

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Thus, the plastic jars of the air capacitor represent the parallel conducting plates.

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1 year ago
A scientist is trying to determine the identity of an element. It is highly reactive to water and forms an ionic bond with chlor
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The answer is noble gas. Since noble gas are constant and unreactive. They can still shape compounds with other elements. 
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3 years ago
when an object is charged by contact, how does the kind of charge transferred compare to that on the object giving the charge?
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Goldie Doldfish, a speed swimmer, loves to rece around the parks pond, which is 0.5 miles around. If she can swim around the tra
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Her average speed is 0.25 miles / hour.

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8 0
2 years ago
A 60cm long string of an ordinary guitar is tuned to produce the note a4 (frequency 440hz) when vibrating in its fundamental mod
pishuonlain [190]

Answer:

0.78 m

Explanation:

The relationship between wavelength and frequency of a wave is given by

v=f \lambda

where

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Substituting into the equation and re-arranging it, we find the wavelength:

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3 years ago
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