Aresearcher measures the thickness of a layer of benzene ( n = 1.50) floating on water by shining monochromatic light onto the film and varying the wavelength of the light. she finds that light of wavelength 565 nm is reflected most strongly from the film. part a: what does she calculate for the minimum thickness of the film? t= need units also.

t = 94.17 nm

Explanation:

given,

refractive index = n = 1.50

wavelength of light = 565 nm

minimum thickness, t = ?

using formula

where value of m lies

  m = 0 , 1 , 2 ...

form minimum thickness m = 0

t = 94.17 nm

minimum thickness of the film is equal to 94.17 nm

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .