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What is the effect of increasing the curvature of a lens on its focal length?
What is the effect of increasing the curvature of a lens on its focal length?
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Practice Questions
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Q1
What is the effect of increasing the curvature of a lens on its focal length?
Focal length increases
Focal length decreases
Focal length remains the same
Focal length becomes zero
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Increasing the curvature of a lens decreases its focal length.
Questions & Step-by-step Solutions
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Q
Q: What is the effect of increasing the curvature of a lens on its focal length?
Solution:
Increasing the curvature of a lens decreases its focal length.
Steps: 7
Show Steps
Step 1: Understand what a lens is. A lens is a transparent object that bends light.
Step 2: Know that lenses can be curved. Curvature refers to how much the lens is bent.
Step 3: Learn about focal length. Focal length is the distance from the lens to the point where light rays meet (focus).
Step 4: Realize that when the curvature of a lens increases, it means the lens is more curved.
Step 5: Understand that a more curved lens bends light rays more sharply.
Step 6: Know that when light is bent more sharply, it converges (comes together) at a point that is closer to the lens.
Step 7: Conclude that increasing the curvature of a lens decreases its focal length because the focus point moves closer.
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