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The Microscope
Questions on the practical
Question | Answer |
---|---|
Number of lenses in a compound microscope | two |
The diaphragm is used to control.... | the amount of light reaching the slide |
The eyepiece lens ... | magnifies the image ten times |
The objective lens... | magnifies the image ten times(low power) or forty times(high power) |
To find total magnification.. | multiply the value on the eyepiece lens by the value on the objective lens |
The condenser focuses .... | light onto the slide |
To hold the slide in place... | use the clips |
For approximate focusing use... | the coarse focus |
For precise focusing use... | the fine focus |
When using a compound microscope the specimen must be .. | translucent |
Always look for cells under... | low power before using high power |
When looking through the objective lens move the focus wheel.. | upwards |
When looking at the objective lens move the focus wheel.. | downwards |