Optics Quiz

Which part of the eye adjusts the amount of light entering the eye?

• Cornea

• Lens

• Iris

• Retina

A person with myopia needs which type of corrective lens?

• Convex lens

• Concave lens

• Cylindrical lens

• Bifocal lens

The final image produced by a magnifying glass is:

• Real, inverted, and reduced

• Virtual, upright, and magnified

• Real, upright, and magnified

• Virtual, inverted, and reduced

Which optical device uses two convex lenses to magnify small objects?

• Telescope

• Microscope

• Magnifying glass

• Projector

A telescope is mainly used to observe:

• Small insects

• Distant celestial objects

• Microorganisms

• Small texts

The part of the microscope that is near the observer's eye is called:

• Objective lens

• Eyepiece lens

• Condenser

• Mirror

Which type of telescope uses a concave mirror to gather light?

• Refracting telescope

• Reflecting telescope

• Compound microscope

• Projector

A projector produces which type of image on the screen?

• Virtual and upright

• Real and inverted

• Virtual and inverted

• Real and upright

A person with hypermetropia needs a:

• Convex lens

• Concave lens

• Cylindrical lens

• Prism lens

Which optical instrument is used for enlarging images for presentations?

• Microscope

• Projector

• Telescope

• Magnifying glass