HomePhysics MCQsExcited atoms return to their ground state in 5. Excited atoms return to their ground state inBy Admin / September 17, 2025 A. 10-10s B. 10-8s C. 10-6s D. 10-9s ✅ The correct answer is option B.
6. Dioptre power of a concave lens of 10 cm focal length is Leave a Comment / Optical Instruments MCQs, Physics MCQs / By Admin
2. The dimensions of the coefficient of viscosity are Leave a Comment / Fluid Dynamics MCQs, Physics MCQs / By Admin