93. A glass slab of thickness 4 centimetre contains the same number of waves as 5 centimetre of water when both are Traversed by the same monochromatic light if the refractive index
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![The effect of glass thickness on neutron transmission at selected energies | Download Scientific Diagram The effect of glass thickness on neutron transmission at selected energies | Download Scientific Diagram](https://www.researchgate.net/publication/351772643/figure/fig4/AS:1026137845141505@1621661735807/The-effect-of-glass-thickness-on-neutron-transmission-at-selected-energies.png)
The effect of glass thickness on neutron transmission at selected energies | Download Scientific Diagram
![A plane glass mirror of thickness 3 cm of the material of $\\mu = \\dfrac{3}{2}$ is silvered on the back surface. When a point object is placed 9 cm from the front A plane glass mirror of thickness 3 cm of the material of $\\mu = \\dfrac{3}{2}$ is silvered on the back surface. When a point object is placed 9 cm from the front](https://www.vedantu.com/question-sets/3705c8e2-7688-4104-9c5d-bfef7c831ac26488634397408822901.png)