12th Physics – Chapter 9: Atomic and Nuclear Physics | Numerical Problem Exercise 1

In this video, we solve important numerical problem 1 from Unit 9: Atomic and Nuclear Physics for Class 12 Tamil Nadu State Board students. These questions are highly useful for board exam preparation and help you understand how to apply formulas correctly in problems. ________________________________________ ✨ What you will learn: ✔️ Step-by-step solutions to important numericals ✔️ Applications of atomic models & nuclear physics formulas ✔️ Typical board exam question patterns ✔️ Tips to avoid common calculation mistakes ________________________________________ Problem solved in this video is: Consider two hydrogen atoms HA and HB in ground state. Assume that hydrogen atom HA is at rest and hydrogen atom HB is moving with a speed and make head-on collision with the stationary hydrogen atom HA. After the collision, both of them move together. What is minimum value of the kinetic energy of the moving hydrogen atom HB , such that any one of the hydrogen atoms reaches first excitation state. 📚 Suitable for: 🔹 TN State Board Class 12 students 🔹 Quick revision before exams 🔹 Strengthening numerical problem-solving skills ________________________________________ 💡 Practice along with the video and pause to try each problem yourself for maximum benefit. 👉 If this helps you, Like 👍, Share 🔁 and Subscribe 🔔 to EMR Physics for more chapter-wise numericals and concept videos. ________________________________________ #12thphysics #atomicphysics #physicsnumericals #emrphysics #physicsproblems #physicsboardexam #nuclearphysics #physicsboardexam