MedPhy-Quiz 1 PART 1
Quiz by Noime S. Diwa
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- Q1
It is said that in 250 BCE, Archimedes was able to set a Roman fleet on fire using a mirror. What kind of mirror was this?
concave mirror
spherical mirror
plane mirror
convex mirror
120s - Q2
A person is 1.4 m tall. What minimum size of a plane mirror does he or she needs to see hit or her full reflection?
depends on his or her distance from the mirror
0.7 m
greater that 14 m
14 m
120s - Q3
Which mirror can produce an upright image that is smaller than the object?
convex mirror
plane mirror
spherical mirror
concave mirror
120s - Q4
A ray of light is incident at 45°. What is its angle of reflection?
90°
30°
45°
22.5°
120s - Q5
You stand 1.0 m in front of a plane mirror. How far is your image from you?
2 m
0.5 m
1.5 m
1 m
120s - Q6
Which is NOT a characteristic of images formed in plane mirrors?
same size as the object
upright
laterally reversed
real
120s - Q7
A concave mirror has a radius of curvature of 12 cm. What is its focal length?
6 cm
12 cm
24 cm
3 cm
120s - Q8
Which part of a spherical mirror is situated midway between the center of curvature and the vertex?
radius of curvature
focal length
principal focus
aperture
120s - Q9
When an object is placed at the center of curvature of a concave mirror, the image is ________.
real, upright, and bigger than the object
virtual, upright, and bigger than the objectvirtual, upright, and bigger than the object
real, inverted, and the same size as the object
real, inverted, and bigger than the object
120s - Q10
As used in the law of reflection, the word normal means ________.
tangent to the interface
perpendicular to the interface
parallel to the interface
any ray
120s - Q11
A card in front of a plane mirror reads "LUCKY". Which of the following is TRUE?
The mark will appear as LUCKY to a person looking at the mirror.
The mark will appear as KYUCL to a person looking at the mirror.
The mark will appear as YOUJ co a person looking at the mirror.
The mark will appear as JUDY to a person looking at the mirror.
120s - Q12
Which mirror always produces a magnification equal to 1?
plane mirror
concave mirror
spherical mirror
convex mirror
120s - Q13
The focal length of a spherical mirror is how many times its radius of curvature?
twice
1/2
1/4
once
120s - Q14
Which ray striking a spherical mirror will be reflected along itself?
a ray passing through the center of curvature
a ray parallel to the optical axis
a ray passing through the principal focus
a ray passing through the vertex
120s - Q15
Which type of mirror always produces a virtual image that is smaller than the object?
concave mirror
convex mirror
spherical mirror
plane mirror
120s