Reflection of Light at Plane and Curved Surfaces
Physics · 50 practice questions
Laws of reflection and their applications; formation of images by plane, concave and convex mirrors and ray diagrams; the mirror formula (1/f = 1/u + 1/v); linear and angular magnification.
- Interpret the laws of reflection and illustrate image formation by plane, concave and convex mirrors.
- Apply the mirror formula to solve optical problems and determine linear magnification.
- Apply the laws of reflection to the periscope, kaleidoscope and sextant.
Try a few questions
- Practice question 1
The mirror formula relating focal length, object distance and image distance is
- A.1/f = 1/u - 1/v
- B.f = u + v
- C.f = uv
- D.1/f = 1/u + 1/v
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D. 1/f = 1/u + 1/v
This is the standard mirror formula used for both concave and convex mirrors.
- Practice question 2
A spherical mirror's pole is the geometric centre of its reflecting surface, and the principal axis is the line passing through the pole and the
- A.focal point exclusively, excluding the centre of curvature
- B.outer edge of the mirror only
- C.centre of curvature
- D.image formed by a specific object
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C. centre of curvature
The principal axis is defined as the straight line running through both the pole and the centre of curvature.
- Practice question 3
Convex mirrors are commonly used as vehicle side or rear-view mirrors mainly because they
- A.provide a magnified, closer-looking view of objects behind the vehicle
- B.provide a wider field of view than an equivalent plane mirror
- C.are much cheaper to manufacture than any other type of mirror
- D.never produce any distortion in the reflected image
Show the answer
B. provide a wider field of view than an equivalent plane mirror
The diverging nature of a convex mirror captures a broader field of view, useful for spotting more of the road behind.
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