Science · Physics
एक पारंपरिक बहुरूपदर्शी (कैलिडोस्कोप) में प्रयुक्त तीन समतल दर्पण एक-दूसरे से कितने डिग्री के कोण पर झुके होते हैं?
- 145°
- 290°
- 330°
- 460°✓
सही उत्तर देखें
60°
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