Computer · Surveying
एक समायोज्य लेवल (adjustable level) में, जब बुलबुला (bubble) केंद्र में होता है, तो बुलबुला ट्यूब का अक्ष किसके समानांतर हो जाता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1इनमें से कोई नहीं
- 2दूरबीन का अक्ष (Axis of telescope)
- 3कोलीमेशन रेखा (Line of collimation)✓
- 4ऊर्ध्वाधर अक्ष (Vertical axis)
सही उत्तर देखें
कोलीमेशन रेखा (Line of collimation)
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