Question

The true thickness (t, in m) of bed B in the given diagram is ..... 

Hint:

To calculate the true thickness of a bed, divide the apparent thickness by the sine of the dip angle.

Answer 1

Correct Answer: 10

Step 1: Understand how to calculate true thickness using apparent thickness.
The true thickness (t) of a bed is related to the apparent thickness when there is a dip. The formula to calculate true thickness is: \[ t = \frac{\text{apparent thickness}}{\sin(\theta)} \] Where: - Apparent thickness = 20 m (given in the diagram) - \(\theta = 30^\circ\) (the dip angle)

Step 2: Calculate the true thickness (t).
Substitute the values into the formula: \[ t = \frac{20}{\sin(30^\circ)} = \frac{20}{0.5} = 40 \, \text{m} \] Thus, the true thickness of bed B is 40.00 m.