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प्रश्न
What happens to the level of mercury in the barometer tube when it is taken down a coal mine? It
विकल्प
falls
remains unaltered
rises
rises and then falls
MCQ
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उत्तर
rises
shaalaa.com
General Science and Technology Current Affair (Entrance Exam)
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
