A loudspeaker is producing sound of a certain wavelength. Which combination of the wavelength (expressed as a multiple of λ0) and the speaker's diameter (expressed as a multiple of D0) would exhibit the greatest amount of diffraction when the sound leaves the speaker and enters the room?

greatest amount of diffraction

Explanation:

given data

loudspeaker is producing sound =  wavelength

solution

As per equation

sinθ = 1.22  

here  θ is relate to wavelength and diameter

so that is get by the ratio of

so here ratio of  

and this is largest diffraction angle in yield

which three statements are true about all alloys?

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.