Answer:
A: They produce a real image.
Explanation:
The images formed on the retina of the eye for a normal visibility must always be real.
Only a real image can be physically projected on any physical object whereas the virtual images are visible due to reflections.
- The nearsightedness is corrected with the help of a concave lens since it is the condition of the eye lens remaining thick and curved to converge the rays entering the eyes after a shorter distance which results in their image formation even before the retinal surface so to initially diverge them a bit so that they converge on the retinal surface and form the image there we use concave lens. Vice-versa of the above justification in the case of farsightedness.
Answer:
relative density is the density divided by some reference density.
for liquids like mercury the reference density is most likely water, so
relative density = density mercury / density of water = 13600
An electric field is an electric property associated with each point in space when charge is present in any form.
Like charges repel, unlike charges attract
Two protons will also tend to repel each other because they both have a positive charge. On the other hand, electrons and protons will be attracted to each other because of their unlike charges.
So I would say no, unless the two bodies are placed close to each other where one has much more charge than the other, then due to induction, force of attraction becomes more than the force of repulsion.
C) gain one electron.
Explanation:
A chloride ion forms when a chlorine atom gains an electron. An atom is made up of three fundamental particles which are:
- Protons which are the positively charged particles in an atom.
- Electrons which are the negatively charged particles in an atom.
- Neutrons do not carry any charges.
In a neutral atom, the number of protons and electrons are the same.
For an atom to become charged, it must gain or lose electrons.
- When an atom gains electrons, the number of protons is less than the number of electrons and it is negatively charged. Such an atom is called an anion.
- When an atom loses electrons, the number of protons is more and it becomes positively charged. Such an atom is called a cation.
A chlorine atom that has gained an electron is an anion. It is negatively charged.
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Anion brainly.com/question/4670413
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