Why would you always use the low-power objective lens to locate objects mounted on the slide first even if you want to observe them with the high power objective lens?

Answer 1

because it allows you to find the part of the slide you want to see, then you can zoom in by changing focus to see the frame in greater detail. if you don't start in low power it is extremely difficult to move around the slide

Answer 2

"When turning to the high power objective you should always look at the objective from the side of your microscope so that the objective does not hit or damage the slide that is why you start with low power objective lens"

This is not the reason as to WHY you should use the low power lens first. This is a precautionary step you must take when moving from the low power lens to the high power Len's.

You should use the low power lens first because it is easier to find objects on the slide at this power. When the specimen has been located using the coarse focus wheel, use the fine focus wheel to sharpen the image as much as possible. The slide should be positioned so that the specimen is in the centre of your field of view. Then while looking from the side turn the high power lens into place and use the fine focus wheel to sharpen the image.

If you were to use the high power lens first you could spend a lot more time searching around the slide for a glimpse of what you are meant to see. You are not guaranteed to even find it as the focus could be completely off.

LOW : LOW : LOW : LOW : LOW :

Answer 3

because it allows you to find the part of the slide you want to see, then you can zoom in by changing focus to see the frame in greater detail. if you don't start in low power it is extremely difficult to move around the slide

Answer 4

"When turning to the high power objective you should always look at the objective from the side of your microscope so that the objective does not hit or damage the slide that is why you start with low power objective lens"

This is not the reason as to WHY you should use the low power lens first. This is a precautionary step you must take when moving from the low power lens to the high power Len's.

You should use the low power lens first because it is easier to find objects on the slide at this power. When the specimen has been located using the coarse focus wheel, use the fine focus wheel to sharpen the image as much as possible. The slide should be positioned so that the specimen is in the centre of your field of view. Then while looking from the side turn the high power lens into place and use the fine focus wheel to sharpen the image.

If you were to use the high power lens first you could spend a lot more time searching around the slide for a glimpse of what you are meant to see. You are not guaranteed to even find it as the focus could be completely off.

LOW : LOW : LOW : LOW : LOW :

Answer 5

there are two reasons this is a good idea:

1) By progressing from a low objective to a high objective lens it makes it easier to focus on the object. If you jumped straight to the high power objective lens you would have trouble trying to resolve the image.

2)This prevents you from accidentally moving the lens so close to the slide that it touches it. This could crack the slide, damage the microscope lens, or smear the sample on the slide.

Answer 6

A man at a dance looks at a number of women and then chooses one to ask to dance. A woman looks at a field of flowers and chooses one to pick.

A person using a microscope looks at a number of objects in a slide and chooses one to examine in greater detail. Then the woman moves in front of the flower. The man moves over to the woman. The person moves the slide directly over the object to be examined in greater detail.

He asks her to dance. She picks the flower. The person switches to the higher power lens.

In all of life we chose a specific item to examine from among many choices. We do the same thing when looking through a microscope.