455765
Description
Quiz by leonie.examtime, updated more than 1 year ago
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Created by leonie.examtime
almost 11 years ago
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Question 1
Question
When an image is created using a concave lens, What type of image is created?
Answer
-
Virtual
-
Real
-
No image is created
Question 2
Question
When an image is created using a convex lens, what type of image is created?
Answer
-
A virtual image
-
A real image
-
The image can be real or virtual
Question 3
Question
Light waves travel in straight lines
Answer
- True
- False
Question 4
Question
The refractive number index of a medium is unitless
Answer
- True
- False
Question 5
Question
When light rays go through a convex lens, what happens to them?
Answer
-
Nothing happens them
-
The diverge away from the normal
-
They converge towards the normal
Question 6
Question
What is the power of a convex lens?
Answer
-
Positive
-
Negative
-
It has no power
Question 7
Question
If a ray hits a medium at the medium's critical angle, the ray passes through the medium without being deflected
Answer
- True
- False
Question 8
Question
What units do we measure the power of lenses in?
Answer
-
Watt
-
Coulomb
-
Dipoles
Question 9
Question
If a ray of light travels from one medium into a denser medium (one with a higher refractive index), at what speed does the ray travel in the new medium?
Answer
-
At a faster speed
-
At a slower speed
-
At the same speed
Question 10
Question
What is the power of a concave lens?
Answer
-
Positive
-
Negative
-
It has no power
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