Calculating Refractive Index and Angles of Incidence and Refraction

This video tutorial explains the concept of refraction and the refractive index of materials. It covers how to calculate the refractive index, angle of incidence, and angle of refraction using the formula n = sin(i)/sin(r). The tutorial provides examples of light traveling through different materials, such as glass, diamond, and amber, and demonstrates calculations for each scenario, emphasizing the importance of significant figures in the results.

What is the term for the wave that approaches the boundary between two different materials?

• Normal ray

• Incident ray

• Boundary ray

• Refracted ray

Which angle is formed between the incident ray and the normal?

• Angle of deviation

• Angle of incidence

• Angle of reflection

• Angle of refraction

What is the formula used to calculate the refractive index of a material?

• n = i / r

• n = sin i / sin r

• n = tan i / tan r

• n = cos i / cos r

If the angle of incidence is 48 degrees and the angle of refraction is 30 degrees, what is the refractive index of the glass?

• 1.75

• 1.62

• 1.49

• 1.33

Given a refractive index of 2.417 and an angle of refraction of 10 degrees, what is the angle of incidence?

• 20.5 degrees

• 24.8 degrees

• 30.2 degrees

• 35.6 degrees

What is the refractive index of amber if the angle of incidence is 45 degrees and the angle of refraction is calculated to be 27.1 degrees?

• 1.33

• 1.42

• 1.55

• 1.67

How do you calculate the angle of refraction if you know the refractive index and the angle of incidence?

• Use the formula n = tan i / tan r

• Use the formula n = sin i / sin r

• Use the formula n = sin r / sin i

• Use the formula n = cos i / cos r