Lens_Audrey

What is the objects position when the image is beyond 2F and the image formed is real, inverted, and bigger than the object?

• beyond 2F'

• between F' and lens

• between F' and 2F'

A piece of glass or transparent material that has at least one spherical surface?

• convex lens

• spherical lens

• diverging lens

How many focal points does a lens have?

• 0

• 1

• 2

Normal vision of the human eyes is on the average?

• 20 cm up to infinity

• 25 cm up to infinity

• 30 cm up to infinity

Which statement is NOT true about camera?

• Its refracting system is the shutter.

• The opening for light to enter is called the aperture.

• The image is formed in the film, chip, or memory card.

The additional lens near the object is called?

Answer explanation

objectives

The magnifying glass near the eye is called?

Answer explanation

eyepiece

Presbyopia is sometimes called "aging eyes" or?

Answer explanation

old eyes

Myopia is the medical term for?

Answer explanation

nearsightedness

The point through which all the light rays pass without being bent?

Answer explanation

optical center