It Is Theorized That a Pulsar Only Emits X-Rays and Visible

question 27

Multiple Choice

It is theorized that a pulsar only emits X-rays and visible light during its early history.What do you suppose is the basis of this theory?

• A)As the pulsar's energy dissipates,the frequency of the energy it emits drops.
• B)X-rays are likely the result of radioactive decay,which only can occur in a pulsar's early history.
• C)X-rays and visible light are both part of the electromagnetic spectrum.
• D)The pulsars high rate of spin produces a magnetic field that,over time,slows the pulsar down.

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