Does phenomenon of diffraction help us to decide about the longitudinal or transverse nature of light?

Do longitudinal or transverse waves show diffraction?

Which of the following phenomenon shows the transverse nature of light?

What is the nature of sound Longitudinal wave or Transverse wave ?

Does diffraction of light give information about the nature (transverse or longitudinal) of light waves.

Explain polaristaion affords a convicing evidence of transverse nature of light.

Which of the following does not support the wave nature of light?

What do we understand by polarisation of a wave?How does this phenomenon heolp us to decide,whether a given wave is trnsverse or longitudinl in nature?

Experimental observations have shown that X-rays exhibit the phenomenon of diffraction and can be polarised.What conclusion can be drawn about the nature of X-rays from this observation?