When dim blue light shines on a piece of metal, electrons are ejected from its surface, but not when bright red light shines on the metal. Does this phenomenon provide evidence for the wave model or the particle model of light? Why? O A. The wave model, because increasing the brightness causes red light to remove electrons O B. The particle model, because increasing the brightness causes red light to remove electrons
C. The particle model, because only high-energy frequencies of light can remove electrons
D. The wave model, because only high-energy frequencies of light can bend around a barrier

number of electrons for neutral cl

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.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =

inverse v=i*r

nice nice