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olga nikolaevna [1]
3 years ago
6

The nucleus of an atom can have either a positive or negative charge. please select the best answer from the choices provided t

f
Physics
2 answers:
Airida [17]3 years ago
5 0
F - False.

The nucleus of an atom is positively charge.
Ivahew [28]3 years ago
3 0

Answer:

FALSE

Explanation:

Nucleus of an atom consist of neutrons and protons and it is the smallest part of atom.

So the total charge on the nucleus is due to charge of protons as we know that neutrons are neutral in nature and they do not have any charge on it.

So we will have

Q_{proton} = + 1.6 \times 10^{-19} C

Q_{neutron} = 0 C

Q_{electron} = - 1.6 \times 10^{-19} C

so here we can say that total charge on a nucleus must be positive charge which is only due to protons present inside the nucleus.

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a. 4v

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2 years ago
A hydrogen discharge lamp emits light with two prominent wavelengths: 656 nm (red) and 486 nm (blue). The light enters a flint-g
mezya [45]

Answer:

The angle between the red and blue light is 1.7°.

Explanation:

Given that,

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n_{r}=1.572

n_{b}=1.587

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n_{r}\sin\theta_{i}=n_{a}\sin\theta_{r}

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\theta_{r}=\sin^{-1}(\dfrac{1.572\sin37}{1})

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n_{b}\sin\theta_{i}=n_{a}\sin\theta_{b}

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1.587\sin37=1\times\sin\theta_{b}

\theta_{b}=\sin^{-1}(\dfrac{1.587\sin37}{1})

\theta_{b}=72.7^{\circ}

We need to calculate the angle between the red and blue light

Using formula of angle

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\Delta \theta=72.7-71.0

\Delta \theta=1.7^{\circ}

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C

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Explanation:

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