Plzz answer question no 12

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

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