Mirror Formula Calculations
Authored by Digambar Singh
Others
12th Grade
Used 6+ times
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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the focal length of a mirror if the object distance is 20 cm and the image distance is 30 cm.
60 cm
40 cm
70 cm
50 cm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An object is placed 15 cm in front of a concave mirror. If the focal length is 10 cm, calculate the image distance.
-30 cm
5 cm
40 cm
-20 cm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the object distance is 40 cm and the image distance is 20 cm, calculate the focal length of the mirror.
13.33 cm
25 cm
10 cm
15 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A concave mirror forms a real image 24 cm in front of the mirror when the object is placed 12 cm in front of it. Calculate the magnification.
-2
0.5
1
3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An object is placed 30 cm in front of a convex mirror. If the image distance is 10 cm, calculate the magnification.
0.5
1/3
-1/3
3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the object distance if the image distance is 15 cm and the magnification is -2 for a concave mirror.
30 cm
7.5 cm
0 cm
-7.5 cm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the object distance is 25 cm and the magnification is -1.5, calculate the image distance for a convex mirror.
25 cm
42.5 cm
-37.5 cm
37.5 cm
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