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3 years ago

14

The closeness of measured values to an accepted value is the BLANK of the data ?

1 answer:

wlad13 [49]3 years ago

3 0

When you refer to how close a measured value is to a standard, accepted or known value, you are talking about the ACCURACY of the data. This is the definition of accuracy when it comes to engineering and other fields of science.

Accuracy is usually associated or with the term precision, as their definitions are often interchanged.

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<u><em>(b) 1:1</em></u>

Explanation:

<u></u>

<u>1. Formulae:</u>

E = hf

E = h.v/λ

λ = h/(mv)

E = (1/2)mv²

Where:

E = kinetic energy of the particle
λ = de-Broglie wavelength
m = mass of the particle
v = speed of the particle
h = Planck constant

<u><em>2. Reasoning</em></u>

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A proton has mass number 1.

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$\dfrac{m_\alpha}{m_p}=4$

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Thus:

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