Using Light

Question 1

Which are uses of lasers? Check all that apply.scanning barcodestransmitting telephone and Internet signalsexamining internal body partscutting through metals, ceramics, plastics, and clothcorrecting vision problems

Revolt · Accepted Answer

scanning barcodes; cutting through metals, ceramics, plastics, and cloth; correcting vision problems

Question 2

virtual imagefocal point✔ object

Revolt · Accepted Answer

object

Question 3

objectvirtual image✔ focal point

Revolt · Accepted Answer

focal point

Question 4

Refer to the diagram to the left and use the drop-down menus to identify the parts of a magnifying glass.

Revolt · Accepted Answer

virtual image; object; focal point

Question 5

concave lens​magnifying lens​✔ convex lens​

Revolt · Accepted Answer

convex lens​

Question 6

object✔ virtual imagelens

Revolt · Accepted Answer

virtual image; Selection 1: virtual image; Selection 2: object; Selection 3: focal point

Question 7

Why does the sample on a microscope slide need to be very thin?

Revolt · Accepted Answer

so light can shine through it from below

Question 8

Which are advantages of reflecting telescopes? Check all that apply.There is no rainbow-like halo around the image.Reflecting telescopes can be made very large.Reflecting telescopes use only lenses, not mirrors.Only the reflecting side of the primary mirror needs to be perfectly shaped and smooth.The eyepiece creates an image for the observer.

Revolt · Accepted Answer

There is no rainbow-like halo around the image.; Reflecting telescopes can be made very large.; Only the reflecting side of the primary mirror needs to be perfectly shaped and smooth.

Question 9

What is the correct sequence for light traveling through a microscope?

Revolt · Accepted Answer

light – slide – objective lens – eyepiece lens

Question 10

Which type of device enables its users to see around corners?

Revolt · Accepted Answer

fiber optics

Using Light Answers

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