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WorksheetsReflection of light
Total questions: 20
Worksheet time: 10mins
Calculate the image distance when the object distance is 20 cm and the focal length is 10 cm.
15 cm
25 cm
30 cm
20 cm
Determine the object distance if the image distance is 15 cm and the focal length is 5 cm.
20 cm
7.5 cm
10 cm
3 cm
Find the magnification when the object distance is 30 cm and the image distance is 20 cm.
1.5
-0.67
2.5
0.75
Explain how a real image is formed by a concave mirror.
A real image is formed by a concave mirror when the object is placed on the mirror's surface.
A real image is formed by a concave mirror when the object is placed beyond the focal point.
A real image is formed by a concave mirror when the object is placed between the mirror and the focal point.
A real image is formed by a concave mirror when the object is placed at the focal point.
Describe the formation of a virtual image by a convex mirror.
A virtual image is formed by a convex mirror when light rays parallel upon reflection, creating an image that is located at the focal point of the mirror.
A virtual image is formed by a convex mirror when light rays converge upon reflection, creating an image that is located in front of the mirror.
A virtual image is formed by a convex mirror when light rays converge upon reflection, creating an image that is located in front of the mirror, larger than the object, and inverted.
A virtual image is formed by a convex mirror when light rays diverge upon reflection, creating an image that is located behind the mirror, smaller than the object, and upright.
If the object distance is 25 cm and the focal length is 15 cm, calculate the image distance.
40 cm
37.5 cm
30 cm
22.5 cm
Given an object distance of 40 cm and an image distance of 10 cm, find the magnification.
0.25
1.5
2.0
-0.25
Discuss the characteristics of a real image formed by a concave mirror.
Sideways, located above the mirror, can be projected onto a screen, and magnified in size.
Inverted, located in front of the mirror, can be projected onto a screen, and diminished in size.
Upright, located inside the mirror, can be projected onto a screen, and remains the same size.
Erect, located behind the mirror, cannot be projected onto a screen, and enlarged in size.
Explain why a virtual image formed by a convex mirror cannot be projected onto a screen.
The virtual image can be projected onto a screen but will appear distorted
A convex mirror does not produce virtual images
The virtual image can be projected onto a screen if the mirror is concave
The virtual image formed by a convex mirror cannot be projected onto a screen because the rays of light do not converge to a real focal point.
Calculate the object distance if the image distance is 12 cm and the focal length is 8 cm.
10 cm
15 cm
24 cm
20 cm
A virtual erect enlarged image is formed by a concave mirror of radius of curvature 30 cm. The object is placed at
13 cm
17 cm
21 cm
27 cm
All the options are correct
Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?
15 cm in front of the mirror
30 cm in front of the mirror
more than 30 cm in front of the mirror
between 15 cm and 30 cm in front of the mirror
A point object is placed at a distance of 20 cm from a convex mirror of focal length 20 cm. The image will form at:
at infinity
at focus
at pole
behind the mirror.
A mirror that focuses parallel light rays
cocave
convex
A mirror that produces upright and enlarged image when the object is very near
concave
convex
Mirrors used for illuminating purposes such as headlights of cars, flashlights, and spotlights.
concave
convex
A mirror used by dentist in magnifying the area behind your teeth to check on cavities and tooth decay.
concave
convex
How many cases are there for virtual image through concave mirror?
1
2
3
What should be the distance of an object kept in front of a Concave Mirror so that we get a REAL image of the same size as of the object?
Beyond C (at Infinity)
Between F and C
C
None of these
Pole is the point at the _____ of the spherical mirror.
Bottom
Top
Middle
