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JEE • PHYSICS • PHYSICAL WORLD

Physical world practice · Medium

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These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.

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Showing 1-30 of 36 questions

1 Medium

1 of 36

Understanding +4 | -1

Which of the following statement is correct?

View answer and explanation

Correct option: B

Like gravitational force, electromagnetic force acts over large distances and does not need any intervening medium

Option B (Like gravitational force, electromagnetic force acts over large distances and does not need any intervening medium) is correct because both gravitational and electromagnetic forces are long-range forces that can act through a vacuum.

2 Medium

2 of 36

Understanding +4 | -1

Gravitational force dominates in terrestrial phenomena because

View answer and explanation

Correct option: A

masses involved are quite large

Option A (masses involved are quite large) is correct because the gravitational force is directly proportional to the product of the masses involved, making it dominant when masses are large.

3 Medium

3 of 36

Remembering +4 | -1

Natural science does not include

View answer and explanation

Correct option: A

Social sciences

Option A (Social sciences) is correct because natural sciences deal with the physical world, while social sciences study human society and social relationships.

4 Medium

4 of 36

Remembering +4 | -1

Prior to the advent of the Einstein’s theory of relativity, it was concluded that

View answer and explanation

Correct option: A

matter was thought to be indestructible

Option A (matter was thought to be indestructible) is correct because before Einstein's theory, the law of conservation of mass was considered fundamental, implying matter could not be destroyed.

5 Medium

5 of 36

Analyzing +4 | -1

Assertion: In universe, gravitational force dominates in long distance and electric force dominates in short distance.

Reason: For gravitational force

\propto \frac{\text { (mass) }^2}{\text { distance }^2}

and electric force

\propto \frac{\text { charge }^2}{\text { distance }^2}

View answer and explanation

Correct option: A

Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

Option A is correct. Gravitational force dominates over long distances due to the large masses of celestial bodies, while electric force dominates at short distances due to the presence of charges. The reason correctly explains this.

6 Medium

6 of 36

Remembering +4 | -1

The theory of solar system, in which the sun occupies the central position, is known as

View answer and explanation

Correct option: B

Copernicus theory of solar system

Option B (Copernicus theory of solar system) is correct because Copernicus proposed the heliocentric model with the sun at the center.

7 Medium

7 of 36

Remembering +4 | -1

In 1913, Niels Bohr gave a theory on the basis of

View answer and explanation

Correct option: B

nuclear model of atom

Option B ( nuclear model of atom) is correct because Niels Bohr's theory in 1913 was based on Rutherford's nuclear model of the atom.

8 Medium

8 of 36

Understanding +4 | -1

Consider the following statements and select the correct statement(s).

I. Optics deal with the phenomena involving light.

II. Unification means physical phenomena in terms of few concepts and laws.

III. Macroscopic domain of Physics deals with the constitution and structure of matter at the minute scales of atoms and nuclei.

IV. Mechanics deals with motion of rigid bodies.

View answer and explanation

Correct option: A

I and IV

Option A (I and IV) is correct because Optics deals with light phenomena, and Mechanics deals with the motion of rigid bodies.

9 Medium

9 of 36

Understanding +4 | -1

Which of the following statement is correct?

View answer and explanation

Correct option: C

The attempts to unify fundamental forces of nature is called unification.

Option C (The attempts to unify fundamental forces of nature is called unification.) is correct because unification is the process of combining different forces or phenomena under a single theoretical framework.

10 Medium

10 of 36

Understanding +4 | -1

In Physics, quantitative measurement is central to the growth of science because

View answer and explanation

Correct option: D

All of the above

Option D (All of the above) is correct because quantitative measurement is crucial in physics as it allows for precise mathematical expression of natural laws, ensures universal applicability, and enables successful approximation strategies.

11 Medium

11 of 36

Remembering +4 | -1

Macroscopic domain includes

View answer and explanation

Correct option: D

All of the above

Option D is correct because the macroscopic domain includes phenomena at the laboratory, terrestrial, and astronomical scales.

12 Medium

12 of 36

Understanding +4 | -1

Which of the following statement is correct?

View answer and explanation

Correct option: D

The subjects of kinetic energy and statistical mechanics interpreted microscopic quantities in terms of the
properties of the molecular constituents of the bulk system.

Option D (The subjects of kinetic energy and statistical mechanics interpreted microscopic quantities in terms of the properties of the molecular constituents of the bulk system.) is correct because it accurately describes the domain of kinetic theory and statistical mechanics.

13 Medium

13 of 36

Analyzing +4 | -1

Assertion: The concept of energy is central to Physics and expression for energy can be written for every physical system.

Reason : Law of conservation of energy is not valid for all forces and for any kind of transformation between different forms of energy.

View answer and explanation

Correct option: C

If the Assertion is correct but Reason is incorrect.

Option C is correct because the concept of energy is central to physics, and the law of conservation of energy is valid for all forces and transformations.

14 Medium

14 of 36

Remembering +4 | -1

Which of the following is the weakest force?

View answer and explanation

Correct option: A

Gravitational force

Option A (Gravitational force) is correct because gravitational force is the weakest of the four fundamental forces.

15 Medium

15 of 36

Understanding +4 | -1

Conservation laws are such tha

View answer and explanation

Correct option: A

it cannot be proved but can be verified

Option A is correct because conservation laws are based on observations and experiments and can be verified but not proven.

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16 Medium

16 of 36

Understanding +4 | -1

Electric force manifest itself in atmosphere, where

View answer and explanation

Correct option: B

atoms are ionised and that leads to lightning

Option B (atoms are ionised and that leads to lightning) is correct because lightning is a result of electrical discharge due to ionization of atoms in the atmosphere.

17 Medium

17 of 36

Understanding +4 | -1

Which of the following statements is/are correct?

I. Strong nuclear force binds protons and neutrons in a nucleus.
II. In twentieth century, silicon chip triggered a revolutionary changes in technology of computer system.

III. Gravitational force is the force of mutual attraction between any two objects by virtue of their masses.

IV. Electromagnetic force is the strongest force in nature.

View answer and explanation

Correct option: D

I, II and III

Option D is correct because statements I, II, and III are all factually accurate regarding nuclear forces, silicon chips, and gravitational forces.

18 Medium

18 of 36

Remembering +4 | -1

What is full form of GMRT?

View answer and explanation

Correct option: C

Giant Metrewave Radio Telescope

Option C (Giant Metrewave Radio Telescope) is correct as it is the full form of GMRT.

19 Medium

19 of 36

Understanding +4 | -1

The elastic spring force arises due

View answer and explanation

Correct option: C

Both (1) and (2)

Option C (Both (1) and (2)) is correct because the elastic spring force arises from both net attraction and net repulsion between neighboring atoms in the spring.

20 Medium

20 of 36

Understanding +4 | -1

Assertion: Strong Nuclear force is stronger than electromagnetic force.
Reason: Strong nuclear force overcomes the electrostatic repulsion between protons and binds them together maintaining nuclear.

View answer and explanation

Correct option: A

Assertion is True, Reason is True; Reason is a correct explanation for Assertion

Option A (Assertion is True, Reason is True; Reason is a correct explanation for Assertion) is correct because the strong nuclear force is indeed stronger than the electromagnetic force, and this strength is what allows it to overcome the electrostatic repulsion between protons in the nucleus.

21 Medium

21 of 36

Understanding +4 | -1

Consider the following statements in the context of forjmulation of any law of Physics

I. explain the existing physical facts

II. no need of experimental verification

III. predict future results

Then, any formulated law of Physics, should be true with respect to:

View answer and explanation

Correct option: C

I and III

Option C (I and III) is correct because a law of physics should explain existing facts and predict future results, but experimental verification is necessary, not optional.

22 Medium

22 of 36

Remembering +4 | -1

Among the following which one is the weakest fundamental force?

View answer and explanation

Correct option: B

Gravitational force

Option B (Gravitational force) is correct because the gravitational force is the weakest of the four fundamental forces.

23 Medium

23 of 36

Remembering +4 | -1

According to Einstein's theory, mass

(\mathrm{m})

is equivalent to energy

(E)

given by

View answer and explanation

Correct option: D

E=m c^2

Option D (

E=m c^2

) is correct because it represents Einstein's mass-energy equivalence.

24 Medium

24 of 36

Remembering +4 | -1

Who among the following is not a Nobel laureate in physics

View answer and explanation

Correct option: D

Ernest Rutherford

Option D (Ernest Rutherford) is correct because while Rutherford won the Nobel Prize, it was in Chemistry, not Physics.

25 Medium

25 of 36

Understanding +4 | -1

In gravitational force,

View answer and explanation

Correct option: D

All of the above

Option D is correct because gravitational force encompasses mutual attraction, universality, and its role in cosmic structure formation.

26 Medium

26 of 36

Understanding +4 | -1

Which of the following is wrongly matched?

View answer and explanation

Correct option: D

Computers-Superconductivity

Option D (Computers-Superconductivity) is wrongly matched because computers are based on digital circuits, not superconductivity.

27 Medium

27 of 36

Understanding +4 | -1

Which of the following statement is incorrect?

View answer and explanation

Correct option: D

Euclid’s statement that parallel lines never meet is a supposition with assuming that it is true.

Option D (Euclid’s statement that parallel lines never meet is a supposition with assuming that it is true.) is incorrect because Euclid's statement is a postulate, not a supposition with assuming that it is true.

28 Medium

28 of 36

Analyzing +4 | -1

Assertion: Spring force, friction force, normal force, tension in rope, etc. are similar forces.

Reason: They arise out of the gravitationalorce between the particles.

View answer and explanation

Correct option: C

Assertion is correct but Reason is incorrect

Option C is correct. Spring force, friction force, normal force, and tension are all electromagnetic in origin, but they don't arise from gravitational force.

29 Medium

29 of 36

Remembering +4 | -1

Forces acting on microscopic domain are

View answer and explanation

Correct option: D

All of these

Option D (All of these) is correct because electric, magnetic, and nuclear forces all play significant roles at the microscopic level.

30 Medium

30 of 36

Understanding +4 | -1

When we hold a book in our hand, we are balancing the gravitational force on the book due to

View answer and explanation

Correct option: A

normal force provided by our hand

Option A is correct because the normal force from the hand balances the gravitational force on the book.

Revision notes and key takeaways

Review PHYSICAL WORLD in your textbook or class notes, then use this set to check your understanding.

Key Takeaways

✓ This set contains 36 single-correct-answer MCQs on PHYSICAL WORLD.
✓ Try each question before opening its answer. Read the explanation where one is available.
✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.

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