state gov BPSC Assistant Revenue & Accounts Officer Test Series 2025 General Science Physics Measuring Instruments
Reading the following statements carefully and choose the correct option.
Assertion (A) : Mercury is used in thermometers.
Reasoning 1 (R1) : Mercury is a good conductor of heat.
Reasoning 2 (R2) : Mercury expands uniformly when heated.
1
Both R1 and R2 are correct and together provide the correct explanation for A.
2
R1 is correct explanation for A.
3
R2 is correct explanation for A.
4
Both R1 and R2 are incorrect.