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Alex Ar [27]
1 year ago
7

A shield of material that reflects neutrons is placed around a radioactive sample. Which change in the nuclear reaction is most

likely to happen?
A chain reaction will be sustained in a subcritical mass.
The chain reaction in a critical mass will stop.
A chain reaction will occur at a constant rate in a critical mass.
The chain reaction in a supercritical mass will slow down.
Physics
1 answer:
Crazy boy [7]1 year ago
3 0

Answer:

A chain reaction will be sustained in a sub-critical mass.

Explanation:

Hope this helps!

If not, I am sorry.

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The time period T of a simple pendulum is given by the relation
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Answer:

T^2 \propto L

Explanation:

The period of a simple pendulum is given by:

T=2\pi \sqrt{\frac{L}{g}}

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From this equation we can write

T\propto \sqrt{L}\\T\propto \frac{1}{\sqrt{g}}

Taking the square of this equation, we get:

T^2 = (2\pi)^2 \frac{L}{g}

So we see that T^2 is proportional to L and inversely proportional to g. So, we can write:

T^2 \propto L\\T^2 \propto \frac{1}{g}

So the only correct option is

T^2 \propto L

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Explanation:

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