WorksheetsMinh Qunag
Total questions: 10
Worksheet time: 3hrs 30mins
A light beam traveling in air hits a block of crown glass (n = 1.52) at an incidence angle of 45°. What is the approximate angle of refraction within the glass?
30.0°
45.0°
60.0°
75.0°
A monochromatic red light enters a block of transparent material and bends at 35.0° within the material. If the material’s refractive index is 1.50, what was the angle of incidence in air?
45.6°
31.2°
45°
54.6°
A ray inside water (n = 1.33) strikes the surface at an angle of 50.0°. Given the critical angle is 48.8°, what phenomenon will be observed?
The light refracts into the air
The light partially reflects
Total internal reflection occurs
The light disperses into colors
Calculate the critical angle for the interface between water (n = 1.33) and air (n = 1.00).
42.1°
24.1°
45.0°
90°
A laser in water with a frequency of 5.00 x 10^14 Hz is directed upward. What is the wavelength of the laser in the water?
~0.75.10^-6
~580 nm
~75 nm
~900 nm
A beam of light traveling in a glass prism (n = 1.50) enters at an angle of 50°. What will be the angle of refraction in air after it exits the prism?
72.5°
50.0°
45.0°
60.0°
Light strikes a plastic material (n = 1.60) at an angle of 57°. Use Snell’s law to determine the angle of refraction.
30.2°
45.0°
36.5°
57.0°
Violet light enters a medium with refractive index 1.66. What is the speed of this light in the medium?
1.81 x 10^8 m/s
2.00 x 10^8 m/s
3.00 x 10^8 m/s
1.50 x 10^8 m/s
Brewster's angle is reached when the reflected and refracted rays are perpendicular. What is Brewster’s angle for air-glass (n = 1.5)?
56.3°
48.8°
42.0°
63.4°
A ray of light transitions from oil (n = 1.46) into air at 40.0°. Determine whether total internal reflection will occur.
Yes, always
No, angle is below critical angle
Only at higher frequencies
Depends on prism shape
