Physics · Surface Tension
स्वच्छ कांच की सतह के संबंध में पारे (मरकरी) का स्पर्श कोण (contact angle) होता है:
- 190° से अधिक✓
- 290° से कम
- 390°
- 40°
सही उत्तर देखें
90° से अधिक
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