Question : The subatomic particle that does not have any electric charge is a/an_______.
Option 1: Electron
Option 2: Proton
Option 3: Neutron
Option 4: All options are correct
Correct Answer: Neutron
Solution : The correct option is a Neutron
Neutrons are subatomic particles located in an atom's nucleus that have no electrical charge but contribute to the atom's mass along with protons. Neutrons increase the total mass of an atom but do not affect the atom's chemical behaviour. Protons are subatomic particles that carry a positive charge. They weigh about one atomic mass unit (AMU) and an elementary charge of +1. Negatively charged particles called electrons orbit the nucleus in shells or energy levels. Every element possesses neutrons in its atoms except hydrogen.
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Question : The nucleus of an atom consists of
Option 1: Proton
Option 2: Neutron
Option 3: Proton, and Neutron
Option 4: Electron, Proton, and Neutron
Question : The minimum number of forces to keep a particle in equilibrium is
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Question : In 1932, who discovered the positron, a particle described as "carrying a positive charge but having a mass of the same order of magnitude as that normally possessed by a free negative electron"?
Option 1: Niels Bohr
Option 2: Paul Dirac
Option 3: Ernest Rutherford
Option 4: Carl D. Anderson
Question : A closed economy is one in which
Option 1: Does not trade with other countries
Option 2: Does not possess any means of international transport
Option 3: Does not have a coastal line
Option 4: Is not a member of the UNO
Question : Directions: Three statements are given followed by four conclusions numbered 1, 2, 3, and 4. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically does NOT follow(s) from the statements. Statements: All K are S. No S is a B. Some B are T. Conclusions: 1) No K are B. 2) Some T are not S. 3) Some T are B. 4) All B being K is a possibility.
Option 1: Only 2 does not follow
Option 2: Only 1 does not follow
Option 3: Only 3 does not follow
Option 4: Only 4 does not follow
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