6.1 jawapan

6.1 Waves 1

6.2 Reflections of Waves

6.3 Refraction of Waves

9 4 Logic Gates doc

9 2 Semiconductor doc

9 1 cathode ray oscilloscope doc

9 3 Transistor doc

6.1 Waves 4 Damping & Resonance

6.5 Interence of Waves

6.1 Waves 2

6.1 Waves 3