26 verified questions · ~29 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).
With rise in temperature, the Young's modulus of elasticity:
If R is the radius of the earth and the acceleration due to gravity on the surface of earth is g = π² m/s², then the length of the second's pendulum at a height h = 2R from the surface of earth will be:
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