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Introduction Space science | Variations in X-rays can reveal how matter behaves near a spinning black hole. Explanation QPO means quasi-periodic oscillation, a nearly regular variation in radiation brightness. ARIES researchers modelled viscous accretion flows around spinning black holes. Their simulations linked unstable, oscillating shocks in the flow to X-ray variability across different frequencies. Faster spin could bring the shock closer and produce higher frequencies. The radiation is emitted by matter around the black hole, not light escaping from inside its event horizon. The release concerns numerical research and its physical interpretation. Important Notes QPO: quasi-periodic oscillation. Institute: ARIES, under DST. Subject: accretion flows and black-hole spin. Source: https://www.pib.gov.in/PressReleasePage.aspx?PRID=2327410
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Every date of October 2026 has its own page under this topic. Open the date you want and you will get exam-style MCQs with answers and short explanations.
SSC CGL and CHSL, Banking exams like IBPS and SBI, RRB, State PSC and UPSC prelims. Exams held in 2027 usually ask current affairs from the previous six to eight months, so October 2026 is important.
Yes. Every question, option and explanation is given in both Hindi and English, so you can practise in the language of your exam.
Solve one date a day and mark the questions you get wrong. Go back to those on the weekend. At the end of the month, one quick round of all the wrong answers is usually enough.
