Modern PHYSICS MCQs (Special Theory of relativity) Practice Questions for IIT JAM, JEST, TIFR, BHU, JNU, DU, HCU, ISRO etc….

Here is a compilation of Free MCQs of Modern PHYSICS MCQs Practice Questions for IIT JAM, JEST, TIFR, BHU, JNU, DU, HCU, ISRO etc. Candidates can practice free MCQs . At the end of Multiple Choice Questions, the answer key has also been provided for your reference. So, you can test yourself HERE.

Modern PHYSICS MCQs (Special Theory of relativity) Practice Questions for IIT JAM, JEST, TIFR, BHU, JNU, DU, HCU, ISRO etc…

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Modern PHYSICS MCQs (Special Theory of relativity) Practice Questions for IIT JAM, JEST, TIFR, BHU, JNU, DU, HCU, ISRO etc….

The MODERN PHYSICS MCQs Practice Questions  with Answers is very important for students who want to score good marks in their examinations like IIT JAM, JEST, TIFR, BHU, JNU, DU, HCU, ISRO etc.

We have compiled the MCQs Questions for the Candidates / Students who are preparing for IIT JAM, JEST, TIFR, BHU, JNU, DU, HCU, ISRO etc. Practice MODERN PHYSICS MCQs  (Multiple Choice Questions) with Answers on a daily basis and score well in exams.

There is total 30 The Modern Physics MCQs with answers given  below So , attempt these  The Modern Physics MCQs and test yourself , at the last correct and incorrect answers will be  highlighted.


#1. In an inertial frame S, astationary rod makes an angle θ with the x-axis. Another inertial frame S' moves with a velocity 'v' with respect ot S along the common x-x' axis. As obscrved from S' the angle made by the rod with the x'- axis is θ'. Which of the following statemcnts is correct ?

#2. A space crew has a life support system that can last only for 1000 hours. What minimum speed would be required for safe travel of the crew between two space stations separated by a fixed distance of 1.08 ×10^12 km ?

#3. Light takes 4 hours to cover the distance from Sun to Neptune. Ifyou travelin a spaceship at a speed 0.99c (where 'c' is the speed of light in vacuum), the time (in minutes) required to cover the same distance measured with a clock on the spaceship will be approximately

#4. A proton from outer space is moving towards earth with velocity 0.99c as measured in earth’s frame.A spaceship, traveling parallel to the proton, measures proton’s velocity to be 0.97c. The approximate velocity ofthe spaceship, in the earth’s frame is

#5. A collimated beam of pions originate from an accelerator and propagates in vacuum along a long straight beam pipe. The intensity of this beam was measured in the laboratory after a distance of 75 m and found to have dropped to one-fourth of its intensity at the point of origin. If the proper half-life of a pion is 1.77 x 10^-8s, the speed of the pions in the beam, as measured in the laboratory, must be

#6. In a certain intertial frame two light pulses are emitted at point 5 km apart and separated in time by 5 μs. At observer moving at a speed V along the line joining thesc points notes that the pulses are simultannus. Therefore V is

#7. A k meson (with a rest mass of 494 MeV) at rest decays into a muon (with a rest mass of 106 MeV) and; neutrino. The energy of the neutrino, which can be taken to be massless, is approximately

#8. In a certain inertial frame two light pulses are emitted, a distance 5 km apart and separated by 5 μs. At observer who is traveling. parallel to the line joining the points where the pulses are emitted, at a velocity V with respect to this frame notes that the pulses are simultancous. Therefore V is 

#9. Light takes approximately 8 minutes to travel fom the Sun to the Earth. Suppose in the frame ofthe Sun an event occurs at t = 0 at the Sun and another evet occurs on Earth at t =1 minute. The velocity ofthe inertial frame in which both these events are simultaneous is:

#10. The kinetic energy of a free relativistic particle is me ?, where E and m are its total energy and rest mass respectively. Let v, be the speed at which the kinetic energy equals the rest mass energy of the particle. Then

#11. A galaxy is receding relative to us at a speed of 3000 km/s. It emits hydrogen redline of wavelength 6560 Å. When seen by us, the wavelength of this radiation will appear to be

#12. Muons of kinetic energy E are produced in collision with a target in a laboratory. The mass of a muon is 106 MeV/c and its half-life is 1.4x10 s in its rest frame. What should be the minimum value of E if more than half the muons created at the target are to reach a detector 840 m away ?

#13. A muon, whose lifè-time at rest is 2 x 10^-6 sec, is travelling through the laboratory at three-fifh of the speed of light. It will last in

#14. Relative to a stationary observer, a rod of length 1.0 metre is moving at 0.8 times the speed of light in vacuum. It would appear to the observer that the rod’s length is :

#15. A particle is moving at a speed of 2.6 ×10^8 ms relative to the laboratory. Its lifetime as measured by an observer in the laboratory is 4.7 ×10^-6 s. The lifetime of the particle in its own rest frame is about


Hope the information shed above regarding MCQ Questions with answers of Modern PHYSICS for IIT JAM, JEST, TIFR, BHU, JNU, DU, HCU, ISRO etc… . If you have any other queries of Modern Physics MCQs Multiple Choice Questions with Answers, feel free to reach us so that we can revert back to us at the earliest possible.

And if any answer is wrong then feel free to correct us 🤗.

Advantages of practicing IIT JAM Physics QUESTIONS

  • By  practicing  the IIT JAM Physics Questions from any practice book  or   last years questions Papers,  you’ll  be  able  to understand  the  IIT JAM Physics Exam  Syllabus  and  Pattern.
  • By solving the IIT JAM  physics Problems / Questions, you’ll find an idea about the questions that what kind of questions were asked and what kind of questions can be asked.
  • Also By continuous practicing of  the IIT JAM Physics Problems , you’ll be able to  rectify your sharpness, accuracy, capacity  and  also time management skills.

How can I start preparing for IIT JAM for Physics ?

Step-wise IIT JAM Physics 2022 Preparation Plan

Aspirants should check the following steps to start with the preparation process of IIT JAM 2022.

  • Step 1 : Know the IIT JAM 2022 syllabus thoroughly.
  • Step 2 : Understand the IIT JAM exam pattern and marking scheme.
  • Step 3 : Get the best books to study for IIT JAM and other study material.
  • Step 4 : Make a monthly time-table, a weekly time-table, and a daily time-table.
  • Step 5 : Solve past years’ question papers, sample papers, and mock tests.

These are some RECOMMENDED  Best Books for you IIT JAM   preparation , Buy  from below the hard copy at  the affordable prices : –

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There are some important topics of Modern Physics for IIT JAM PHYSICS preperation are listed below : –

  • Atomic theory and atomic model
  • Black-body radiation
  • Franck–Hertz experiment
  • Geiger–Marsden experiment i.e. Rutherford’s experiment
  • Gravitational lensing
  • Michelson–Morley experiment
  • Photoelectric effect
  • Quantum thermodynamics
  • Radioactive phenomena in general
  • Perihelion precession of Mercury
  • Stern–Gerlach experiment
  • Wave-particle duality
  • Thermodynamics. Heat and temperature.
  • Vibrations and Waves Phenomena
  • Quantum Mechanics.

IIT JAM Physics Books to Read for Modern Physics Preparation 2022

Books that aspirants should consider reading for the topic, Modern Physics, are as mentioned below:

Name of BookAuthor
Introduction to Quantum MechanicsDavid J Griffiths
Nuclear PhysicsDC Tayal
Quantum PhysicsHC Verma
Nuclear Fission and Cluster Radioactivity: An Energy-Density Functional ApproachMA Hooshyar, Irwin Reichstein, F Bary Malik
Nuclear PhysicsV Devanathan
Atomic and Molecular PhysicsRaj Kumar


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