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grin007 [14]
2 years ago
11

Choose the statement(s) that is/are true about Bohr model of the atom. (i) Electron energies are quantized and they can assume o

nly certain discrete energy values. (ii) An electron receiving extra energy could transfer to a higher energy level. (iii) An electron falling from a high energy level to a low energy level will radiate the excess energy in the form of electromagnetic radiation. (iv) An electron can be stripped off an atom by giving it sufficient energy.
Physics
1 answer:
GuDViN [60]2 years ago
6 0

Answer:

All of the statements are correct corresponding to Bohr's model of atom.

Explanation:

The postulates of Bohr's model of atom are:

1) Electron's revolve around nucleus in stationary states with constant energy levels.

2) The angular momentum of the electrons is quantised.

3) Electron's can change their stationary states by either absorbing energy if it moves to a state of higher energy or emitting radiations if it moves to a lower stationary state from higher state.

4) While revolving in an orbit an electron does not change it's energy.

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Answer:

Rate at which current flows is measured in amperes

Explanation:

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The direction of electron from the negative terminal to the positive terminal. The direction of current is from the positive terminal to the negative terminal.The current is measured in ampere.    

The expression for current and the charge is as;

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Here, q is the charge, t is the time taken and I is the current.

According to the given problem, Jodi made a list about electric current to help her study for a test. He described that electrons move from areas of low to high electric potential, voltage causes current to flow and movement of electrons is continuous in a current.

But he did error. It should be "rate at which charges flow" instead of rate at which current flow.

Therefore, the option (4) is correct.

4 0
3 years ago
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3 years ago
A Smart Car, which has a mass of 1000 kg, is going 20 m/s. When it hits the barrier, it stops with a time of 0.5 seconds. What i
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Answer:

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Explanation:

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We know that,

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