Physics
Grade-10
Easy
Question
Salma wears a pair of eye lenses of focal length - 80 cm. What is the type of lenses?
- Concave
- Convex
- Bifocals
- Trifocals
Hint:
People with myopia use lens with negative focal length.
The correct answer is: Concave
The correct option is a) Concave.
She wears a concave lens. This is because concave lenses have negative focal length and power.
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