What is an optically denser medium?
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Figure 10.1 shows a ray of light as it travels from medium A to medium B. Refractive index of the medium B relative to medium A is
(a) √3/√2 is the correct option
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Find out, from Table 10.3, the medium having highest optical density. Also find the medium with lowest optical density.
Highest optical density = Diamond Lowest optical density = Air Optical density of a medium is directly related with the refractive index of that medium. A medium which has the highest refractive...
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How are the following colloids different from each other in respect of dispersion medium and dispersed medium ? Give one example of each type.
[Hint : D.P. D.M. Example (a) Solid/liquid ...
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Why is red phosphorus denser and less chemically reactive than white phosphorus ?
[Hint : Because it have polymeric structure consisting chains of P4 tetrahedra, hence denser than white P while red P is not having angular strain as in white P, hence...
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What is an optically rarer medium?
A medium in which light travels comparatively faster than the other medium is called an optically rarer medium.
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If refractive indices of water and alcohol are 1.33 and 1.36 respectively, which of the two is optically denser medium?
The refractive index of alcohol is more than water, therefore, alcohol is optically denser medium.
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Which one of the two-glass and water is optically denser and why?
Glass is denser than water because speed of light in glass is less than that of water.
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Total internal reflection can take place only if (a) light goes from optically rarer medium (smaller refractive index) to optically denser medium
(b) light goes from optically denser medium to rarer medium EXPLANATION: When the light goes from a denser medium to lighter medium, it goes away from the normal. When the angle of...
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Total internal reflection can take place only if (a) light goes from optically rarer medium
(b) According to Snell’s Law, sin i/ sin r =μ 2/μ 1 = where r = 90º for particular incidence angle called critical angle. When the incidence angle is equal to or greater than...
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When light travels from a rarer to a denser medium, the speed decreases.
No; when light travels from a rarer to denser medium, its frequency remains unchanged. According to quantities theory, the energy of a light beam depends on frequency and not on...
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