#sign-convention

Stories and questions with this tag.

Yash Tiwari11thSample· 20d ago
Thermodynamics: delta U = q + w ya q - w? bhai sign hi samajh nahi aata
Bhai ek problem hai. Chemistry teacher ne bataya ΔU = q + w. Physics wale sir ne bola Q = ΔU + W, matlab ΔU = Q − W. Dono ek hi cheez hai ya mere dimaag ka bug hai? Aur ye bhi nahi samajh aa raha ki gas expand karti hai
🔬 Science❓ Question1 min read👏 3💬 11
Commons CommunityTeam· 21d ago
How do I keep the sign conventions straight in ray optics for mirrors and lenses?
One wrong sign flips real to virtual and magnified to diminished. Here is a single convention, one routine, and two worked examples.
⚛️ NEET Physics❓ Question1 min read👏 0💬 4
Commons CommunityTeam· 26d ago
Why do I get the sign of work, heat and delta H wrong in thermodynamics every single time?
Sign slips in thermodynamics are rarely about not knowing the concept. Here is how to pick a viewpoint, stick to it, and catch the clash between Physics and Chemistry.
🧪 NEET Chemistry❓ Question1 min read👏 0💬 5