Plzz answer question no 12 22.
Refraction
14. The refractive index of water with respect to air is 4/3 and
the refractive index of glass with respect to air is 3/2. The
refractive index of water with respect to glass is
(b) 8/9
23
Refractive Index
15. Airhas refractive index 1.0003. The thickness ofair column,
which will have one morewavelength of yellow light (6000
Å) than in same thickness of vacuum, is
(a) 2 mm
(c) 2m
(b) 2 cm
16.
A glass slab of thickness 8 cm contain, the same number
ofwaves as 10 cm ofwater when both are traversed by the