A Young's double slit experiment is conducted in water
[IMAGE] as shown in the figure, and a glass plate of
thickness t and refractive index [IMAGE] is placed in the
path of[IMAGE]. The magnitude of the phase difference at
O is[IMAGE]. Find n. (Assume that
is the wavelength of light in air). O is
symmetrical w.r.t. [IMAGE] and [IMAGE].

Show answer and solution

Here path difference will be:
[IMAGE] TOPIC:Waves Optics
SUB TOPIC:Optical path difference
LEVEL:Moderate

Source: Grass-G / Ph-28 Physics paper FST 16 Jan.docx

Need a video for this idea?

Scan any doubt from your notes and get a whiteboard explanation.