44:22

EM7

41:49

Laser1

43:46

Interference2

2:17

Elon Musk’s SpaceX Rocket Explodes After Take-off | 10 News First

23:45

Cathode Ray Oscilloscope for frequency and voltage measurements with animation| CRO O level physics

44:49

Diffraction4

43:27

QM1

44:16

Interference1