Child Development and Pedagogy · Pedagogy
ध्यान की अवधि (Attention span) को मापने के लिए निम्नलिखित में से किस उपकरण का उपयोग किया जाता है?
- 1स्ट्रोबोस्कोप (Stroboscope)
- 2स्टीरियोस्कोप (Stereoscope)
- 3काइनेटोस्कोप (Kinetoscope)
- 4टैचिस्टोस्कोप (Tachistoscope)✓
सही उत्तर देखें
टैचिस्टोस्कोप (Tachistoscope)
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