1) what is means by diffraction of waves a) spreading of waves b) movement of waves c) passing thru of waves d) propagation of waves 2) what happen during diffraction of water waves a) waves propagate thru slit b) waves pass thru a barrierr c) waves pass thru an obstacles d) waves propagate thru slit or side or barrier 3) what is changing during diffraction of water waves? a) wavelength b) frequency c) amplitude d) speed 4) what is happen when waves travel thru fixed slit with long wavelength? a) no changing of spreading waves  b) spreading of waves more significat c) spreading of waves less significant 5) what is happen when fixed wavelength pass thru a wide slit ? a) no changing of spreading of waves b) spreading of wave more significat c) spreading of waves less significat

kssm physics f4 diffraction of waves

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