A platinum resistance thermometer reads when its resistance is and when its resistance is

PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

A platinum resistance thermometer reads

0^{\circ}

when its resistance is

80 \Omega

and

100^{\circ}

when its resistance is

90 \Omega

. Find the temperature on the platinum scale at which the resistance is

86 \Omega