Microscopes Flashcards

1
Q

Radiation used//electron microscope

A

Electron beam

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2
Q

Focusing with//light microscope

A

Lenses

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3
Q

Focusing with//electron microscope

A

Magnets

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4
Q

Magnification//light microscope

A

X1500

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5
Q

Magnification//electron microscope

A

X500,000

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6
Q

Resolving power//light microscope

A

200nm

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7
Q

Resolving power//electron microscope

A

0.2nm

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8
Q

Biological matter//light microscope

A

Living or dead

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9
Q

Biological matter//electron microscope

A

Dead

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10
Q

Size//light microscope

A

Small and portable

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11
Q

Size//electron microscope

A

Very large and static

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12
Q

Ease of use//light microscope

A

Easy to use

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13
Q

Ease of use//electron microscope

A

Skill and training required

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14
Q

Cost//light microscope

A

Relatively cheap

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15
Q

Cost//electron microscope

A

Very expensive

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16
Q

Sample in a vacuum//light microscope

A

No

17
Q

Samples in a vacuum//electron microscope

A

Yes

18
Q

Radiation used//Light microscope

A

Light rays

19
Q

Transmission Electron Microscope (TEM)

A

Send electrons through a specimen and the image produced is 2D

20
Q

Scanning Electron Microscope (SEM)

A

Bounce electrons off the surface of an object and the images are 3D

21
Q

Why have electron microscopes

A

1) better magnification

2) better resolution

22
Q

Magnification

A

Magnification=image/actual