NTSE Stage 2 SAT 2017 Question Paper

Question : 38 of 100

Marks: +1, -0

A vessel is filled with oil as shown in the diagram. A ray of light from point O at the bottom of vessel is incident on the oil-air intergace at point P and grazes the surface along PQ. The refractive index of the oil is close to

1.41
1.50
1.63
1.73

Validate

Solution:

R.I. of oil

=1/{\sin \C}

\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;=1/{\p/\H}=\H/\P

\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\=√{12^2+17^2}/12

\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\=1.73

Go to Question:

Prev Question

Next Question