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Question language / प्रश्न भाषा

The Mpemba effect refers to which phenomenon?

Mpemba effect किस phenomenon को refer करता है?

Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।

A

Hotter water can freeze faster than colder waterHotter water colder water की तुलना में faster freeze कर सकता है

✓

B

Cold water always boils faster than hot waterCold water हमेशा hot water से faster boil करता है

C

Water expands continuously when heatedWater heating पर continuously expand करता है

D

Ice becomes denser as temperature fallsTemperature fall होने पर ice अधिक dense हो जाती है

Correct Answerसही उत्तर

A. Hotter water can freeze faster than colder waterA. Hotter water colder water की तुलना में faster freeze कर सकता है

Explanationव्याख्या

The Mpemba effect describes the counter-intuitive phenomenon in which hotter water can freeze faster than colder water under certain conditions.
Indian researchers from JNCASR used supercomputer simulations to study the phenomenon.
Their work suggested that hotter water may take a faster pathway toward ice nucleation and avoid delays experienced by colder water.
The study also indicated that the effect can occur in fluids beyond water.

Mpemba effect उस counter-intuitive phenomenon को describe करता है जिसमें certain conditions में hotter water colder water की तुलना में faster freeze कर सकता है। JNCASR के Indian researchers ने इसे study करने के लिए supercomputer simulations का use किया। Study ने suggest किया कि hotter water ice nucleation की ओर faster pathway choose कर सकता है और colder water द्वारा experienced delays से बच सकता है। Effect other fluids में भी occur कर सकता है।

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