25 verified questions · ~28 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).
A diatomic gas (γ = 1.4) does 200 J of work when it is expanded isobarically. The heat given to the gas in the process is:
A disc of radius R and mass M is rolling horizontally without slipping with speed v. It then moves up a smooth inclined surface. The maximum height that the disc can go up the incline is:
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