alleryStart learning →A mercury thermometer works because liquid mercury:
Abecomes lighter in colour
Bevaporates when heated
Cturns solid when heated
Dexpands when heated
Answer & Solution
Correct answer: D. expands when heated
Mercury expands evenly with a rise in temperature, so the thread lengthens along the scale.
Keep practising Heat
Browse all Heat questions for Olympiad (Class 7), or explore more Science topics.
Related questions
Some solar water heaters move hot water upward without a pump by:Thick mud walls keep a hut cooler in summer mainly because mud is a:An ice cube melts in your hand because heat flows:While measuring the temperature of hot water, the laboratory thermometer should be held:When a 90 degrees C block touches a 10 degrees C block, the hotter block's temperature wilHeat is a form of:Normal body temperature on the Fahrenheit scale is nearly:The bottoms of cooking vessels are often blackened with soot because black surfaces: