CONCAVE AND CONVEX MIRROR | Baamboozle - Baamboozle

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What type of lens corrects astigmatism?

cylindrical lens

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

Hypermetropia (farsightedness) happens because the eyeball is:

Too short

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

Which condition would most likely require bifocal or progressive lenses?

Presbyopia

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

Presbyopia usually occurs due to:

Weaken ciliary muscles/ loses flexibility

What lens corrects myopia?

concave lens

What is the main goal of corrective lenses?

To focus light properly on the retina

This mirror curves inward like a cave and can focus sunlight to start a fire.

CONCAVE

When you hold this mirror close to your face, your reflection looks bigger.

CONCAVE

Used in some stores for security to monitor large areas.

CONVEX

What causes myopia (nearsightedness)?

Eyeball is too long

Installed at street corners to help pedestrians see around blind spots.

CONVEX

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 4 cm. An object is placed 8 cm in front of the lens. Find the image distance.

8 CM

A makeup artist uses this mirror to see a magnified reflection of her face.

CONCAVE

What type of lens is used to correct hypermetropia?

Convex lens

Reflects light to a small point, often used in flashlights or car headlights.

CONCAVE

Used by drivers to see a wider view of the road behind them.

CONVEX

The image appears smaller and shows more area than the actual object.

CONVEX