When a wire of resistance R is cut into three equal parts, each part has resistance R/3. These three parts connected in parallel give an equivalent resistance R₁ = R/9. Hence, the ratio R₁ : R = 1 : 9. Science ...
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The correct option is (C). The correct group is Cuscuta, ticks, lice, leeches, and tapeworm, as all are parasites that depend on other organisms for food. They exhibit the same heterotrophic parasitic mode of nutrition, deriving nourishment directly from their ...
A is true but R is false. When current increases in a conductor, the magnetic field becomes stronger. This causes a greater deflection of the compass needle, not a decrease. Thus, assertion is false, while the reason is scientifically ...
The correct option is (d) NaHCO₃. Sodium bicarbonate is a mild, non-corrosive base commonly used in baking soda. It is safe, weakly alkaline, and does not harm or corrode, unlike strong bases such as sodium hydroxide or calcium hydroxide. Class 10 ...