An ungraduated thermometer of uniform bore is attached to a centimeter scale and is found to read 10 cm in melting ice, 30 cm in boiling water and 16 cm in a liquid. Find temperature of the liquid.
Temperature at 10 cm is 00C.
Temperature at 30cm si 1000C.
So at L=16 cm, let say it measure T.
So
L−1030−10=T−0100−0
16−1030−10=T−0100−0
T=300C