It is given that the value of sin isin r when light enters from medium P to medium Q is less than 1.
Which of the following statements is true?
P is optically denser than Q
As per the question
(sin isin r) < 1
⇒sin i<sin r
i.e., angle of incidence < angle of refraction.
It means the refracted ray bends away from the normal.
Hence, medium P is optically denser than Q.