radioactivity
/ˌreɪdiəʊækˈtɪvəti/noun
उच्चारण रेडिओऐक्टिवटी
रेडियोधर्मिता
Advanced word
noun
- 1
[U] physics
the process in which the nuclei of some atoms break up and send out harmful radiation; the radiation that is sent out
रेडियोधर्मिता
- Uranium and radium show natural radioactivity.
- Workers at the plant wear badges that measure radioactivity.
◇Word family
radioactive adjective
✓In the exam
General knowledge
Radioactivity was discovered by Henri Becquerel in 1896, and Marie Curie later gave it its name.
GK के अनुसार radioactivity की खोज Henri Becquerel ने 1896 में की थी, और बाद में Marie Curie ने इसे यह नाम दिया।