A nurse measures BP using a manometer; the core physics quantity being measured is A Force only B Pressure difference
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Chapter 1: Physical World, Units and Measurement (Set-4)
A scientific “theory” differs from a “law” because a theory mainly A Lists unit symbols B Avoids experiments C Explains
Continue readingChapter 1: Physical World, Units and Measurement (Set-3)
A physical law is considered reliable because it is A Based on belief B Always simple C Experimentally verified D
Continue readingChapter 1: Physical World, Units and Measurement (Set-2)
In physics, a “model” is mainly used to A Replace experiments B Change natural laws C Avoid measurements D Simplify
Continue readingChapter 1: Physical World, Units and Measurement (Set-1)
Physics mainly studies A Chemical reactions B Living organisms C Matter and energy D Earth’s layers Explanation Physics explains natural
Continue readingChapter 25: Metallurgy and Extraction of Metals (Set-5)
In Ellingham diagram, carbon reduces a metal oxide MO when at that temperature A MO line lower B Both lines
Continue readingChapter 25: Metallurgy and Extraction of Metals (Set-4)
A mineral becomes an ore mainly when the metal can be extracted A B. Always magnetic B A. Economically feasible
Continue readingChapter 25: Metallurgy and Extraction of Metals (Set-3)
Sulfide ores are concentrated by froth flotation mainly because they can be A Strongly magnetic B Highly soluble C Easily
Continue readingChapter 25: Metallurgy and Extraction of Metals (Set-2)
A metal found free in nature is usually called A Native metal B Mixed ore C Complex slag D Flux
Continue readingChapter 25: Metallurgy and Extraction of Metals (Set-1)
Which term means a metal-containing rock worth extracting economically A Ore B Mineral C Gangue D Flux Explanation A mineral
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