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Worksheetsplane mirror (optics 1 roxy)
Total questions: 21
Worksheet time: 43mins
Which statement is true?
Mirrors reflect all light that shines on their surfaces.
Light only reflects off mirrors and other smooth surfaces.
Both are true
Neither are true
Which side of aluminium foil is more reflective?
Shiny
Matte
Both may have similar reflectivity
Is the object and image at the same distance from the plane mirror?
Yes
No
Maybe
Is the object and image at the same distance from the convex mirror in the above picture?
Yes, because the number of squares is equal
can't say, the size of the squares is not equal.
A girl is looking at her thumb and bottle from one eye at a time. First from her left eye and then her right eye. What she sees is shown. Which is closer to eye?
Thumb
Bottle
Both thumb and bottle are at the same distance
a
b
c
d
Why does the Moon seem to follow us?
What is the minimum length of the mirror required to visualised the complete image of the body of a person of height H.
H
H/2
H/3
2H
3H
The object that is closer to the observer is going to have a ____ ___ ______ compared to an object that is farther
larger shift in its position
smaller shift in its position
It is often proved that the object distance is equal to the image distance by counting the number of squares between mirror-image and mirror-object. But is it fair to assume that all squares are of the same size? Why and why not?
Can you think of a way to prove that image distance is equal to object distance with respect to a plane mirror?
What is the shift for 2 objects that are at the same distance from the observer?
This apparent displacement when the viewpoint moves side to side is called parallax. The objects in the distance appear to move more slowly than the objects close to the observer. When we have 2 objects at the same position, no parallax is observed as they both appear to move at the same speed with respect to the background objects.
cool!
wow!
How can we use parallax to find image distance in a plane mirror?
I place another object (called an image object) behind the mirror and notice its parallax. The image is mirror is moving faster than the image object. Which is closer to the mirror?
Image object
Image
I move the image object around and again notice the parallax. This time, the image in the mirror is moving slower than the image object. Which is closer to the mirror?
Image object
image
I move the image object around again, and now I see no parallax. This means that:
An object moves away from the mirror. How does the speed of the object compare to the speed of the image?
Speed of object is double of image
Speed of image is double of object
Both move at same speed
A mirror moves away from the object, which is resting on the table. How does the speed of the image compare to the speed of the mirror for an observer. (Observer is stationary)
speed of image is double of mirror
speed of mirror is double of image
both are moving at same speed
Is there a way to see yourself in full in the mirror that is less than half of your height?
that's it, the quiz is over..
yay!!
wohoo!!
