ICSE Class 10 Answered
calculate the value of x
![question image](https://images.topperlearning.com/topper/new-ate/topr_17036742947149812751.jpeg)
Asked by umarakhtar659 | 01 Aug, 2023, 17:58: PM
Angle of deviation δ in prism and angle of incidence i are related as
![begin mathsize 14px style delta space equals space i space plus space e space minus space A end style](https://images.topperlearning.com/topper/tinymce/cache/703f882e1d140a4cf3addf3c039767d1.png)
where e is angle of emergence and A is angle of prism.
In the given graph , angle of deviation δ is 51o when the angle of incidence i = 40o and angle of emergence is x .
Hence , using eqn.(1), we get
![begin mathsize 14px style 51 space equals space 40 plus x minus 62 end style](https://images.topperlearning.com/topper/tinymce/cache/3fac31df9ebb10afb7b81f56a4a24305.png)
Hence , from above expression, we get angle of emergence x = 73o .
Answered by Thiyagarajan K | 01 Aug, 2023, 19:51: PM
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