Q27. A steel rod has a length of 15 m at a temperature of 30°C. If the temperature is raised to 45°C. The increase in its length is:(α= 1.1 x 10-5 K-1)Physics — Heat and Thermodynamics — Question 27 of 415A. 537.1 x 10-5 mB. 447.5 x 10-5 mC. 327.5 x 10-5 mD. 247.5 x 10-5 mE. 127.5 x 10-5 mPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →