Resultant magnetic force
What is resultant magnetic force? can you please explain with an example. (Shreya) Answer: When a magnetic substance (or a magnet) is placed in a region where there are multiple magnetic fields, the...
View ArticleWhy some substances are transparent while some others are opaque
Why some substance being solid enable light to pass through them (like glass, diamond (the hardest substance etc) but other who have less density do not permit refraction? (Asked Brahmadutta...
View ArticleNumerical Problems from Pressure, Density and Floatation
1. Ramesh buys 6 bottles of syrup each containing 1litre. Each empty bottle weighs 400g. The density of syrup is 1.2 g/cm3. What weight does Ramesh have to carry home? 2. The volume of 900g of a...
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