Compendium of Projects Exhibited during the 2nd NLEPC - Vol I

Details of the participant
Name
Chongtham Sishirdhar
Class
IXth
School Name & Address
Keishamthong High School,
Keishamthong Elangbam Leikai
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Name of the Mentor Teacher
Konjengbam Devendra Singh
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Name of the District & State
Imphal West, Manipur
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2 National Level
Exhibition
& Project
Competitions
HOME MADE LASER-BASED
LIQUID PRISM SUCROSE
METER
In this experiment, a sucrosemeter was constructed using
a diode laser pointer and a hollow equilateral glass prism.
Sugar solutions in water having different sugar
concentrations were placed in the hollow glass prism and
diffraction of a laser beam through these solutions were
measured as a function of sugar concentration. The
refractive index of the sugar solutions having different
sugar concentrations was calculated using the refraction
data and parameters of prism – angle of prism, angle of
minimum deviation.
The refractive index was calculated using the formula
where n is the refractive index;
θ is the angle of prism and
P
θ is the angle of minimum deviation.
d
2012
The hypothesis of this experimental investigation was that
the refractive index of the sugar solution in water would
increase as the sugar content in the solution increases and
that the increase would be linear. It is also anticipated that
the sugar concentration of an unknown solution (e.g.
squash, soft drinks) can be determined using this
sucrosemeter.
Innovation in Science Pursuit for Inspired Research
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