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Thermal Properties — JEE Physics MCQs

Master Thermal Properties for JEE Main with free physics MCQs. Each question includes a detailed solution and instant feedback — practice at easy, medium, and hard difficulty levels to build exam-ready confidence.

2 practice questions with instant feedback and solutions.

Easy•Thermal Properties

A metal rod of length

1

m at

20°C

has coefficient of linear expansion

2 \times 10^{-5}

/°C. Its length at

70°C

is:

Medium•Thermal Properties

[JEE Mains 2026] Two rods of equal length 60 cm each are joined together end to end. The coefficients of linear expansion of the rods are 2 × 10⁻⁵ /°C and 3 × 10⁻⁵ /°C. If the temperature is increased from 20°C to 120°C, find the final length of the combination (in cm).