OPSC OCS 2023 · Question 96 of 97
Science & Tech
Mercury is used in thermometers, since it is liquid metal which has relatively high coefficient of expansion. Hence, the slightest change in temperature is easily notable when it's used in a thermometer.
Source: OPSC OCS Prelims 2023 GS Paper-I; answers per Apti Plus unofficial key
Practice the full OPSC OCS 2023 paper
Timed test with all 97 questions, just like the real exam.
Start test