20 verified questions · ~22 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
Consider the sound wave travelling in ideal gases of He, CH₄ and CO₂. All the gases have the same ratio P/ρ, where P is the pressure and ρ is the density. The ratio of the speed of sound through the gases v(He) : v(CH₄) : v(CO₂) is given by
In an electromagnetic system, the quantity representing the ratio of electric flux and magnetic flux has dimension of Mᴾ Lᵠ Tᴿ Aˢ, where the values of 'Q' and 'R' are
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