Give Reason
a) an image is formed when the surface is smooth or polished?
b) Whenver you enter a dark room from bright light you cannot see the things around you.
c) In myopia, faraway subjects are not seen clearly.
Answers
Answer:
a) when u polish it will just come in shape bec it will get polished
b) u can't see things in a dark room from bright place bec light have been trapped in ur eyes.
c) in myopia faraway things are not seen clearly bec its a disorder.
Answer:
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Explanation:
1. When parallel rays of light fall on a smooth or polished surface, the reflected rays are parallel to each other. This is called regular reflection.
2. It’s because of our sensors of light in retina called Rod cells, which helps us to see in dark or dim light. There is another light sensor cell called Cone cells, which helps us see in good to bright light condition and work in light only. So as we enter in a dark room our cones cells stop working as it’s not capable to see in dark and in dark or dim light condition our eyes rod cells start work. But it takes some time, before our rod cells start activating, which is minimum about 5 minutes.
3. The medical name for short sight is myopia. Eyesight problems, such as myopia, are also known as refractive errors. Short sight leads to blurred distance vision, whilst close vision is usually normal. Short-sightedness is a very common problem that can be corrected by glasses or contact lenses, or cured with laser eye surgery. Myopia occurs if the eyeball is too long or the cornea (the clear front cover of the eye) is too curved. As a result, the light entering the eye isn't focused correctly, and distant objects look blurred.