Education · Teaching Aids
निम्नलिखित में से कौन सा प्रक्षेपित साधन (projected aid) की श्रेणी में नहीं आता है?
- 1ओवरहेड प्रोजेक्टर
- 2ब्लैकबोर्ड (श्यामपट)✓
- 3एपिडायस्कोप
- 4स्लाइड प्रोजेक्टर
सही उत्तर देखें
ब्लैकबोर्ड (श्यामपट)
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