As Time Progresses,the Pulse Rate for Most Solitary Pulsars

question 23

Multiple Choice

As time progresses,the pulse rate for most solitary pulsars:

• A) varies periodically as the neutron star undergoes periodic expansions and contractions.
• B) slows down since rotational energy is being used to generate the pulses.
• C) speeds up as the neutron star slowly contracts under gravity.
• D) remains absolutely constant; pulsars provide ideal frequency standards, or clocks.

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