A laboratory has a budget cap of ₹300 for buying one thermometer to measure a…
PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements
Problem
A laboratory has a budget cap of ₹300 for buying one thermometer to measure a temperature rise of about 5.0 °C. The measurement must have a percentage uncertainty not exceeding 1.0 %. Which thermometer should be purchased?
(a) Digital thermometer: least count 0.01∘C, cost ₹600
(b) Mercury thermometer: least count 0.05∘C, cost ₹280
(c) Alcohol thermometer: least count 0.1∘C, cost ₹150
(d) Thermocouple read-out: least count 0.05∘C, cost ₹350