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Used by drivers to see a wider view of the road behind them.
CONVEX
A makeup artist uses this mirror to see a magnified reflection of her face.
CONCAVE
Installed at street corners to help pedestrians see around blind spots.
CONVEX
Reflects light to a small point, often used in flashlights or car headlights.
CONCAVE
The image appears smaller and shows more area than the actual object.
CONVEX
When you hold this mirror close to your face, your reflection looks bigger.
CONCAVE
This mirror curves inward like a cave and can focus sunlight to start a fire.
CONCAVE
Used in some stores for security to monitor large areas.
CONVEX
A concave lens has a focal length of 20 cm. An object is placed 40 cm from the lens. Find the image distance.
40 CM
A concave lens has a focal length of 10 cm. An object is placed 20 cm in front of the lens. Find the image distance.
20 CM
A concave lens has a focal length of 6 cm. An object is placed 12 cm in front of the lens. Find the image distance.
12 CM
A concave lens has a focal length of 8 cm. An object is placed 16 cm in front of the lens. Find the image distance.
16 CM
A concave lens has a focal length of 4 cm. An object is placed 8 cm in front of the lens. Find the image distance.
8 CM
What causes myopia (nearsightedness)?
Eyeball is too long
What lens corrects myopia?
concave lens
Hypermetropia (farsightedness) happens because the eyeball is:
Too short
