On a cold day, the speed of sound in air is 330 m/s. a note with a frequency of 1,320 hz is played on an instrument. what is the wavelength of that sound wave?

As we know that speed of sound is

frequency of sound  is

now we know that frequency of sound and speed of sound is related to each other by the following formula

so wavelength of sound is 25 cm or 0.25 m

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.