Derive an expression for apparent depth when the object is placed in denser medium and observer in rarer medium. pls a answer fast.
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Expression for Apparent Depth:
- Let's assume that a coin has been placed at an actual depth of 'd' (at the bottom of the container). The observer is present in the rarer media.
- Let d' be apparent depth and d be actual depth.
Now, refer to diagram:
Applying Snells's Law:
For very small angles, sin can be changed to tan:
Hope It Helps.
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