0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Is it bad to look outside during a lunar eclipse?
It is o.k. to view a lunar eclipse, because unlike a solar eclipse you are not viewing direct sunlight which can be harmful and blinding but rather reflected light. When viewing a lunar eclipse you would see even less light than viewing a full moon which we know is safe.
Which of the following reflects the skill of perspective?
viewing through their cultural lens
Why can't you look at an eclipse of the sun?
Observing the Sun can be dangerous if you do not take the proper precautions. An improper viewing of the Sun during an eclipse can lead to the development of blindness or may cause retinal burns.
What kind of lens use in microscope?
ocular lens
Why should you never rack downwards with the coarse focusing while you are looking down the microscope?
The object on the viewing stage is close to the lens of a microscope. Racking downward risks the lens touching the object and damaging either the object itself or the lens. Before moving the lens down, make sure you can see the lens and the object from the side of the microscope to void the two touching each other.
How can you tell which objective lens is in the viewing position?
When the objective lens you want to use is in the viewing area it will click in place. At times, trial and error will help. It will only take minute or two to get it correct.
What is an alethoscope?
An alethoscope is an instrument for viewing pictures by use of a lens, so as to see them in their natural proportion.
Is it bad to look outside during a lunar eclipse?
It is o.k. to view a lunar eclipse, because unlike a solar eclipse you are not viewing direct sunlight which can be harmful and blinding but rather reflected light. When viewing a lunar eclipse you would see even less light than viewing a full moon which we know is safe.
When can the lunar eclipse be seen?
Sometimes a lunar eclipse can be seen with the naked eye. Often times, a telescope assists in viewing an eclipse.
What is the use of Erecting lens in a terrestrial telescope?
An erecting lens is used in an astronomical telescope to right the image for terrestrial viewing. It can be placed between the objective and the ocular or be integrated in the eyepiece. Best regards Torbjoern
Which of the following reflects the skill of perspective?
viewing through their cultural lens
What can be the effect of viewing solar eclipse without glasses?
Potential blindness
Why viewing sun is harmful during eclipse when viewing sunrise is not harmful?
harmful rays like the ultra violet rays and infrared rays are released during the eclipse so it may effect the eye sight.
Why is it not safe to use any kind of paper in cleaning the lens of the microscope?
Paper is manufactured from pulp which is made from trees. IE wood. The use of any paper product to clean a delicate lens can cause minute scratches on the lens which can mar the surface and interfere with the visual display when viewing something on the slide. When looking through the microscope, it is hard to determine if what you're seeing is actually on the slide or a scratch on the lens.
What does Slr means?
SLR stands for single lens reflex. This is the type of camera in which the image goes into the lens and is reflected by a mirror into your eye at the viewfinder. You therefore see exactly what the lens is seeing. This type of camera also usually allows you to remove the lens and replace it with another, such as a wide-angle lens by a telephoto, etc. An SLR now can either be a film camera or a digital camera.
What is an eyepice?
well scientifically, an eyepiece is a part of the electron microscope used in viewing objects. it is made up of both plastic for support and the glass for the lens which is used for viewing the objects.
Which objective should be use first in viewing an object?
I assume this is a question about viewing an object through a compound microscope. Always use the shortest objective lens (that is the one with the lowest magnification) first. Focus the lens and then when you want more detail or a closer view, you can simply rotate the lens turret to a longer lens and it should be nearly in focus. Use the fine focus feature to sharpen the picture. If an object is viewed in this way, the danger of scratching the high power objective by ramming it into the slide is lessened.
