An earthquake p wave passes across a boundary in rock where its velocity increases from 6.5 km/s to 8.0 km/s. if it strikes this boundary at 30o, what is the angle of refraction?

37.98°

Explanation:

Data provided in the question:

Initial velocity of the P wave, v₁ = 6.5 km/s          

Final velocity of the P wave, v₂ = 8.0 Km/s            

Angle of strike at the boundary, s = 30°

Now                              

let the angle of refraction be 'r'

we know,

therefore,

or

sin(r) = 1.231 × sin(30)

or

sin(r) = 0.6154

or

r = 37.98°

Explanation:

Given data:

velocity

Angle of striking = 30 degree

angle of refraction is assumed to be X

we know that