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WorksheetsSnell's Law Basics and Lenses
Total questions: 22
Worksheet time: 3hrs 51mins
What is the phenomenon where light bends as it passes from one medium to another?
Diffraction
Reflection
Absorption
Refraction
What is the term for the ratio of the speed of light in a vacuum to the speed of light in a given medium?
Refractive index
Speed ratio
Light index
Vacuum speed ratio
In Snell's Law, what is the angle measured between the incident ray and the normal called?
angle of deflection
angle of incidence
angle of reflection
angle of refraction
When light travels from a medium with a higher index of refraction to a medium with a lower index of refraction, what happens to the angle of refraction?
Remains constant
Bends at a right angle
Decreases
Increases
What is the formula for Snell's Law?
n1 - sin(theta1) = n2 - sin(theta2)
n1 / sin(theta1) = n2 / sin(theta2)
n1 + sin(theta1) = n2 + sin(theta2)
n1 * sin(theta1) = n2 * sin(theta2)
If the angle of incidence is 30 degrees and the index of refraction of the medium is 1.5, what is the angle of refraction?
35 degrees
15 degrees
19.4712206345 degrees
25 degrees
What happens to the speed of light as it passes from a medium with a lower index of refraction to a medium with a higher index of refraction?
It becomes zero
It remains constant
It decreases
It increases
What is the index of refraction of a vacuum?
3
2
1
0
What is the critical angle of incidence for a medium with an index of refraction of 1.5?
41.81 degrees
30 degrees
50 degrees
60 degrees
How does the wavelength of light change when it enters a medium with a higher index of refraction?
The wavelength becomes invisible.
The wavelength increases.
The wavelength remains the same.
The wavelength decreases.
Which letter represents the angle of incidence?
A
B
C
D
What type of image is formed?
virtual and inverted
virtual and upright
real and upright
real and inverted
How does a concave lens differ from a convex lens?
A convex lens is another way to describe a plane mirror; a concave lens is curved
A concave lens is curved inward on both sides; a convex lens is on only one side
A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges
A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges
A concave lens has an inward curved shape. It refracts light outward from the lens. They light rays spread apart as they exit the lens. Which represents a concave lens?
A
B
A and B
neither A or B
What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common.
They are opaque
They refract light
They reflect light
That are translucent
A ____ lens is sometimes called a converging lens because it_____.
convex; makes parallel light rays curve outward or diverge
concave; makes parallel light rays travel at a faster speed than before they encountered the lens
convex, makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.
concave; makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lend known as the focal point.
An object is located 35.0 cm from a convex lens. The lens forms a real image at a distance of 15.0 cm. What is the focal length?
0.0953 cm
10.5 cm
26.2 cm
0.0678 cm
An object 8.5 cm high is placed 28 cm from a converging lens. The focal length of the lens is 12 cm. Determine the height of the image.
*Hint: find di first
6.38 cm
8.5 cm
12cm
21 cm
An object is placed 10 cm from a converging lens with a focal length of 5 cm. Where is the image formed?
10 cm on the opposite side of the lens
5 cm on the same side of the lens
10 cm on the same side of the lens
5 cm on the opposite side of the lens
