Which instrument description on XPoSat is correct?
POLIX measures X-ray polarization (8–30 keV) to study black holes
XPoSat (X-ray Polarimeter Satellite) is ISRO's mission launched in January 2024. It carries two instruments:
POLIX (Polarimeter Instrument in X-rays): Measures X-ray polarization in the 8–30 keV energy band. It is designed to study bright X-ray sources like pulsars, black holes, and neutron stars.
XSPECT (X-ray Spectroscopy and Timing): Performs X-ray spectroscopy and timing observations in the 0.8–15 keV range.
Hence, option D — POLIX measures X-ray polarization (8–30 keV) to study black holes — is correct.
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