Question

a modification in the capillary tube of the clinical thermometer

Answer 1

1. A CLINICAL THERMOMETER UNIT COMPRISING A CAPILLARY TUBE FORMED OF A RELATIVELY NON-FRAGILE TRANSPARENT PLASTIC MATERIAL AND A HOLLOW BULB FIXED TO ONE END OF SAID TUBE AND ADAPTED TO HOLD MERCURY THEREIN, SAID BULB BEING FORMED OF METAL SO AS TO HAVE A HIGHER THERMAL CONDUCTIVITY THAN THE MATERIAL OF SAID TUBE FOR PROVIDING QUICKER READINGS AND THE INNER SURFACE OF SAID BULB BEING PLATINUM-PLATED SO THAT SAID BULB WILL NOT AMALGAMATE WITH THE MERCURY HELD IN SAID BULB.

Answer 2

The modification in the capillary tube of the clinical thermometer is the precence of kink or bend which helps the Mercury to stay safe