Question
पोलीग्राफ (Polygraph) क्या है?
Answer
पोलीग्राफ (Polygraph) एक यंत्र है, जिसको झूठ का पता लगाने के लिए लाई-डिटेक्टर के रूप में प्रयुक्त किया जाता है, यह यंत्र एक साथ ही कई शारीरिक क्रियाओं के परिवर्तनों को रिकॉर्ड करता है, जैसे-हृदय-स्पन्दन, रक्त, चाप, श्वसन आदि।Subscribe to our youtube channel!
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