Dear members, I'm having trouble distinguishing between classical and modern physics subfields and theoretical and experimental classification when compared to the classification listed: 1, Nuclear and particle physics 2. Atomic, molecular, and optical physics 3. Condensed matter physics 4. Astrophysics 5. Applied Physics Which of the listed fields would be considered theoretical, experimental, classical and modern? Since not being a physicist I seem to have confusion about this.Thank you.