Consider slabs of three media A,B, and C. Arragned as shown inn figure . R.I of A is 1.5 and that of C is 1.4. If the number of waves in the combination B and C then refractive index of B is

A slab of transparent material is made as shown in Fig. Monochromatic parallel beams of light are normally incident on the slab. The thickness of C is twice the thickness of B . If the number of waves in A = number of waves in combination of B and C , then the refractive index of B is : .

A slab of transparent materials is made as shown in the figure. Monochromatic parallel beams of light are normally incident on the slabs. The thickness of C is twice the thickness of B. The number of waves is A= the number of waves in the combination of B and C. The refractive index of material A is mu_(0)=1.5 and that of C is mu_(2)=1.4

Three progressive waves A,B and C are shown in figure. With respect to wave A .

Three progressive waves A,B and C are shown in figure. With respect to wave A .

Three progressive waves A,B and C are shown in figure. With respect to wave A .

Three progressive waves A,B and C are shown in figure. With respect to wave A .

Two transparent slabs have the same thickness as shown in figure. One in made of material A of refractive index 1.5. The other is made of two materilas B and C with thickness in the ratio 1:2. The refractive index of C is 1.6. If a monochromatic parallel beam passing through the slabs has the same number of wavelengths inside both, the refractive index of B is

Two transparent slabs have the same thickness as shown in figure. One in made of material A of refractive index 1.5. The other is made of two materilas B and C with thickness in the ratio 1:2. The refractive index of C is 1.6. If a monochromatic parallel beam passing through the slabs has the same number of wavelengths inside both, the refractive index of B is

a,b,c are three numbers such that the average of a and b is 4, that of b and c is 5 and that of a and c is 12. The average of all the three numbers is :