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WorksheetsRepeat for Test
Total questions: 18
Worksheet time: 9mins
A Concave Lens is ________
Thicker in the center
flat
plane mirror
Thinner in the center
What type of lens is CONVERGING ?
convex
concave
none
both
What does DIVERGING mean ?
meet at a focal point
move away
spread apart
come together
Is this lens, Converging or Diverging
Converging
Diverging
What is the distance between the lens and the focal point?
Focal Point
Focal Length
Optical Axis
What is the imaginary horizontal line drawn perpendicular to the lens
Focal Point
Focal Length
Optical Axis
What type of image CANNOT be drawn on a surface
Real image
Virtual Image
Both
None
A Real image can be made when ______ will _______ at a point
sound , Converge
Light , Diverge
Light , Converge
Sound , Diverge
Describe the type of image formed beyond 2 focal lengths of a concave lens
Virtual and smaller
Real and smaller
Virtual and bigger
real and bigger
Describe the type of image formed WITHIN 1 focal lengths of a convex lens
Virtual and smaller
Real and smaller
Virtual and bigger
real and bigger
What type of image is formed AT THE FOCAL POINT of a convex len
Virtual image
Real image
enlarged image
no image
What part of the eye is the covering ( protects from dust)
Cornea
Retina
Optic nerve
lens
What part of the eye converts light into electrical signals (images)
Cornea
Retina
Optic nerve
lens
What part of the eye is at the back and saves the image
Cornea
Retina
Optic nerve
lens
What type of eye problem is when the focal point is beyond the retina
Nearsightedness
Farsightedness
Astigmatism
What type of eye problem is when there is more than one focal point
Nearsightedness
Farsightedness
Astigmatism
What type of lens is the eye?
concave
convex
What type of lens is in the picture?
Concave
convex
