NEET UG Physics Atom and Nucleus MCQs

NEET UG Physics Atom and Nucleus MCQs with answers available in Pdf for free download. The MCQ Questions for NEET Physics with answers have been prepared as per the latest NEET Physics syllabus, books and examination pattern. Multiple Choice Questions form important part of competitive exams and NEET exam and if practiced properly can help you to get higher rank. Refer to more topic wise NEET Physics Questions and also download more latest study material for all subjects and do free NEET Physics Mock Test

Atom and Nucleus NEET Physics MCQ

NEET Physics students should refer to the following multiple-choice questions with answers for Atom and Nucleus in NEET. These MCQ questions with answers for NEET Physics will come in exams and help you to score good marks

Atom and Nucleus MCQ Questions with Answers

 NEET_UG_physics_MCQ_1

NEET_UG_physics_MCQ_1a

NEET_UG_physics_MCQ_1b

 

MCQ

For the answer of the following questions choose the correct alternative from among the given ones.

NEET UG Physics Atom and Nucleus MCQs
 
(2) Read the following question and choose correct Answer form given below.
(A) Both assertion and reason are true. Reason is the correct explanation of theAssertion
(B) BOth assertion and reason are true. Reason is not correct explanation of the assertion
(C) Assertion is true but reason is false.
(D) Both Assertion and Reason are false
(i) Assertion :- In a radio-active disintegration, an election is emitted by nucleus.
    Reason :- eleccon are always Present in-side the nucleus.
(ii) Assertion :- An election and Positon can annibilate each other creating Photon
     Reason:- Electon and Positon form a Particle and anti Particle.
(iii) Assetion:- An isolated radioactive atom may not decay at all what eVer be its half time
      Reason:- Readioactive decay is a statistical Phenomena.
(iv) Assertion :- Fragment Produced in the fission of u235 are active
      Reason:- The fragments have abnormally high Proton to neutron ratio
 
(3) Each of the following question contain two stalements.choose correct answer form the given below.
(i) statement-I:- Large angle scattering of al-pha Particle led to discovery of state ment-II :- Entire Positive charge of atom is concentrated in the central core.
(A) statement -I and II are true. and statement II is correct explanation of statement-I
(B) statement -I and II are true, but statement-II is not correct explanation of statement I
(C) statement I is true, but state ment II is false.
(D) statement I is false but statement II is true
(ii) statement-I 1 amu=931.48 MeV
     statement-II It follows form E=mc2
(iii) statement -I:-half life time of tritium is 12.5 years
      statement-II :- The fraction of tritium that remains after 50 years is 6.25%
(iv) statement-I:- Nuclei of different atoms have same size
      state ment-I I :- R=Ro(A)1/3
 
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(45) In gamma ray emission form a nucleus
(A) there is no change in the proton-number and neutron number
(B) Both the number are changes
(C) only Proton number change
(D) only neutron number change
 
(46) The half life time of a radidactive elements of x is the same as the mean life of another radioactive element Y. Initially they have same number of atoms, then
(A) y will decay faster thean x
(B) x will decay faster then y
(C) x and y will decay at the same rate at all time
(D) x and y will decay at the same rate intially.
 
(47) which of the following transition in hydrogen atoms emits Photon of highest frequengy?
(A) n=2 to n=6 (B) n=1 to n=2
(C) n=2 to n=1 (D) n=6 to n=2
 
(48) An electron Passing through a Potential diffencne of 4.9 v colides with a mercury atom and trnasfer it to the first excited state what is trnasfer it to the first excited state. what is the wave length of Photon corresponding to the franition of mercury atom to its normal state.
(A) 2050A° (B) 2935A° (C) 2525A° (D) 2240A°
 
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(84) The ionigation energy of hydrogen atom is 13.6 eV. The ionigation energy of helium atom would be
(A) 27.2 eV (B) 13.6 eV (C) 54.4 eV (D) 6.8 eV
 
(85) A gamma ray Photon creates an electon- Positon Pair. If the rest mass energy of an electron is 0.5 MeV. and the total kinetrc energy 0.7 MeV, then the energy of the gamma ray Photon must be
(A) 3.9 MeV (B) 1.78 MeV (C) 0.78 MeV (D) 0.16 MeV
 
(86) The masses of netron and Proton are 1.0087 amu and 1.0073 amu respectively. It the neufron and Protons combins to form binding energy of the helium nucleus will be
(A) 14.2 MeV (B) 28.4 MeV (C) 27.3 MeV (D) 20.8 MeV
 
(87) Large angle scattering of α - particle could not be explained by
(A) Thomson modal
(B) Ruther Rutherford and Thpmoson modal
(C) Both rutherford and Thomoson modal
(D) Neither Ruthorford modal norThomson modal
 
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ANSWER KEY

 
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