alleryStart learning →Some solar water heaters move hot water upward without a pump by:
Anatural convection
Bradiation only
Cconduction in pipes
Devaporation of water
Answer & Solution
Correct answer: A. natural convection
Water heated in the panel becomes less dense and rises on its own, driving the flow without any pump.
Keep practising Heat
Browse all Heat questions for Olympiad (Class 7), or explore more Science topics.
Related questions
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:Birds fluff up their feathers in winter to: