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← ScienceWhich frequency shift occurs due to relativistic effects on electromagnetic wave emitted from rotating pulsar?
A)Gravitational redshift increases measured period
B)Doppler blueshift decreases observed period
C)Time dilation lengthens pulsation intervals✓
D)Synchrotron emission widens spectral lines
💡 Explanation
Time dilation causes the lengthening of pulsation intervals, because accelerating frames experience slower time; therefore the observed period is longer rather than spectral broadening or redshift induced by gravity because those affect wave properties differently.
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