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CBSE Class 12-science Answered

total interna reflection by a plane surface possible????????
how??
Asked by harshwarrier | 25 Oct, 2015, 08:18: PM
answered-by-expert Expert Answer
For total internal reflection, light must travel from a denser medium to a rarer medium and the angle of incidence of light in denser medium must be equal to or greater than the critical angle for the pair of media in contact.
Answered by Yashvanti Jain | 26 Oct, 2015, 10:16: AM

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CBSE 12-science - Physics
explain relative refractive index??
Asked by zahirqk | 08 Jan, 2023, 09:50: AM
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CBSE 12-science - Physics
What is real depth and apparant depth and deravation
Asked by parjapati16062003 | 10 Jan, 2022, 10:12: AM
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CBSE 12-science - Physics
when snell's law is not valid? or for what angle of incidence snell's law is not valid?
Asked by satwarsuraj | 10 May, 2020, 06:33: PM
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CBSE 12-science - Physics
In an aquarium a fish 6 cm long is swimming directly towards the plane glass front . If at a certain moment head of the fish is 18 cm behind the glass front,find the apparent length of the fish as seen by a person looking through the glass.  Given R.I. of water = 4/3
Asked by mridulabarua05 | 02 Feb, 2019, 11:28: AM
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CBSE 12-science - Physics
When a white ray of light passes through a prism , it is dispersed. Why? Why does violet colour deviates most, but red colour deviates least while dispersed by a prism?
Asked by pradeepjsme | 01 Feb, 2019, 02:13: PM
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CBSE 12-science - Physics
draw the path of a ray passing through a glass slab. state the factors on which lateral displacement depend. what is the angle of deviation of emergent ray
Asked by kalyani | 19 Sep, 2018, 04:28: PM
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CBSE 12-science - Physics
What is refraction? State the three laws of refraction.
Asked by Topperlearning User | 20 May, 2014, 03:06: PM
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CBSE 12-science - Physics
What is the basic cause for refraction?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Physics
Why does a tank appear shallower than its actual depth?
Asked by Topperlearning User | 20 May, 2014, 03:25: PM
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CBSE 12-science - Physics
Prove that apparent depth is ¾ of real depth.
Asked by Topperlearning User | 20 May, 2014, 03:32: PM
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