Respuesta :
Answer:
Apparent depth (Da) = 60.15 cm (Approx)
Explanation:
Given:
Distance from fish (D) = 80 cm
Find:
Apparent depth (Da)
Computation:
We know that,
Refractive index of water (n2) = 1.33
So,
Apparent depth (Da) = D(n1/n2)
Apparent depth (Da) = 80 (1/1.33)
Apparent depth (Da) = 60.15 cm (Approx)
The apparent depth of the fish is 60 cm.
To calculate the apparent depth of the fish, we use the formula below.
Formula:
- R.F(water) = Real depth(D)/Apparent depth(D')
- R.F = D/D'.................... Equation 1
Where:
- R.F = Refractive index of water
Make D' The subject of the equation.
- D' = D/R.F................... Equation 2
From the question,
Given:
- D = 80 cm
- R.F = 1.333
Substitute these values into equation 2
- D' = 80/1.33
- D' = 60.01
- D' = 60 cm
Hence, the apparent depth of the fish is 60 cm
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