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Please answer all th questions below . Choose the best letter that best fits the

ID: 112461 • Letter: P

Question

Please answer all th questions below . Choose the best letter that best fits the answer

We can think of a force between electrically charged particles as being?

A Caused by the exchanged of "virtual" photons

B. Caused by the exchange of "virtual" nuetrions

C. Caused by curved space-time

D. Caused by the exchange of "real" photons

Which of the following descriptions best describes the electromagetic force?

A. Electronmagetism is the only fundamental force in the universe

B. Electromagetism is essentially the emission and absorption of photons carrying information

C. Electronmagetism is essentially another manifestation of curved space-time

D.Electronmagetism is essentially the emission and absorption of neutrinos carring information

Which of the following statements about electronmagnestism is false?

A. the bigger the charge, the bigger the attraction

B.Every charged object in the universe interacts witth every other object in the universe

c.All of these stastements are false

d. None of these statements are false

What is the significance of the observation of spectral lines in a spectrometer attached to telescope looking at stars?

A.This observation provides us with evidence that the stars and our Sun are made up of the same elements and thus our sun is not unique

B. This observation allowed us to prove that the sun was not the center of the universe

C. This observation allowed us to determine that light os made of photons and not made of waves as orginally thought

D. This observation holds no significance to cosmology

Explanation / Answer

A force between electrically charged particles as being -

A. caused by the exchangeofd Virtual Photons.

Forces between two charged objects require a carrier (massless carrier travelling large distances).

Think of this way, how a charge B will feel what force due to charge A is having if u suddenly double the charge of A.

So there are virtual photons which travel as electromagnetic wave to carry such Force.