Over 6,458,000 live tutoring sessions served!

Top

Verification of Snell's Law

Place a rectangular glass slab on a white sheet of paper fixed on a drawing board.

Trace the boundary ABCD of the glass slab.

Remove the glass slab and draw a normal N₁N₂ at O.

Draw a straight line IO inclined at an angle say 30^o with the normal. IO is the incident ray.

Fix two pins P and Q on the incident ray IO.

Place the glass slab within its boundary ABCD.

Looking from the other side of the glass slab fix two other pins R and S such that P, Q, R and S appear to lie on the same straight line.

Remove the glass slab and the pins. Mark the pin points P, Q, R and S.

Join the pins R and S and produce the line on both sides. The ray O¹E is the emergent ray.

Join OO¹. It is the refracted ray.

With O as centre, draw a circle of a convenient radius 'r' in such a way that it cuts the incident and the refracted rays at F and G respectively.

From F and G draw perpendiculars to the normal N₁N₂.

DFHO and DGKO are right angled triangles.

But OG = OF = r

Measure the length of FH and GK.

Repeat the experiment for different values of angle of incidence.

Record the result in tabular form

Sl.No	i	FH	GK	FH GK
1. 2. 3. 4. 5.

Related Questions

Related Calculators

Newtons Second Law of Motion Calculator