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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 |