Find the radius of the central dark Newton's ring observed in reflection if there is benzene solution (n-1.5) filled in between lens and glass slab. Radius of curvature of the lens R-1 m. Indices of refraction of the lens and the glass slab are equal and higher than that of benzene. Yellow monochromatic light λ=5890 A is used.

come closer and become far apart and become steam/gas

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

measure their densities same density, same sub

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 =