25 Multiple choice questions about snell's law formula?

1. Who is Snell's Law named after?
A. Isaac Newton
B. Johannes Kepler
C. Rene Descartes
D. Willebrord Snell

2. What does Snell's Law describe?
A. The relationship between the angle of incidence and the angle of reflection
B. The relationship between the angle of incidence and the angle of refraction
C. The relationship between the speed of light and the speed of sound
D. The relationship between the wavelength and frequency of a wave

3. What is the formula for Snell's Law?
A. n1sinθ1 = n2sinθ2
B. n1cosθ1 = n2cosθ2
C. n1tanθ1 = n2tanθ2
D. n1sinθ1 = n2cosθ2

4. In Snell's Law, what does n1 represent?
A. The speed of light in medium 1
B. The speed of light in medium 2
C. The refractive index of medium 1
D. The refractive index of medium 2

5. In Snell's Law, what does θ1 represent?
A. The angle of incidence
B. The angle of reflection
C. The angle of refraction
D. The critical angle

6. In Snell's Law, what does n2 represent?
A. The speed of light in medium 1
B. The speed of light in medium 2
C. The refractive index of medium 1
D. The refractive index of medium 2

7. In Snell's Law, what does θ2 represent?
A. The angle of incidence
B. The angle of reflection
C. The angle of refraction
D. The critical angle

8. What is the unit of measurement for the refractive index in Snell's Law?
A. Meters per second
B. Radians
C. Degrees
D. Unitless

9. What happens to the angle of refraction when light travels from a less dense medium to a more dense medium?
A. It increases
B. It decreases
C. It remains the same
D. It becomes zero

10. What is the critical angle in Snell's Law?
A. The angle of incidence at which total internal reflection occurs
B. The angle of refraction at which total internal reflection occurs
C. The angle of reflection at which total internal reflection occurs
D. The angle of incidence at which refraction occurs

11. What is the relationship between the critical angle and the refractive indices of the two media?
A. The critical angle is directly proportional to the refractive indices
B. The critical angle is inversely proportional to the refractive indices
C. There is no relationship between the critical angle and the refractive indices
D. The critical angle is equal to the refractive indices

12. What is the condition for total internal reflection to occur in Snell's Law?
A. The angle of incidence is greater than the critical angle
B. The angle of incidence is less than the critical angle
C. The angle of incidence is equal to the critical angle
D. The angle of incidence is zero

13. What is the speed of light in a vacuum?
A. 3 x 10^8 m/s
B. 2 x 10^8 m/s
C. 4 x 10^8 m/s
D. 5 x 10^8 m/s

14. What is the refractive index of air?
A. 1
B. 0
C. 2
D. 3

15. What is the refractive index of water?
A. 1
B. 0
C. 1.33
D. 2

16. What is the refractive index of glass?
A. 1
B. 0
C. 1.5
D. 2

17. What is the angle of refraction when light travels from air (n=1) to water (n=1.33) with an angle of incidence of 30 degrees?
A. 22.6 degrees
B. 30 degrees
C. 40.2 degrees
D. 45 degrees

18. What is the angle of refraction when light travels from glass (n=1.5) to air (n=1) with an angle of incidence of 45 degrees?
A. 30 degrees
B. 45 degrees
C. 60 degrees
D. 75 degrees

19. What is the angle of refraction when light travels from water (n=1.33) to glass (n=1.5) with an angle of incidence of 60 degrees?
A. 45.6 degrees
B. 60 degrees
C. 70.2 degrees
D. 80 degrees