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NEET • PHYSICS • PHYSICAL WORLD

Physical world practice · Mixed difficulty

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1 Medium
1 of 14
Remembering +4 | -1
Macroscopic domain includes
View answer and explanation
Correct option: D
All of the above
The correct answer is D (All of the above) because the macroscopic domain includes phenomena at laboratory, terrestrial, and astronomical scales.
2 Medium
2 of 14
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 and Mechanics deals with rigid body motion.
3 Medium
3 of 14
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 for expressing laws mathematically, applying them universally, and using approximations.
4 Medium
4 of 14
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 (I, II and III) is correct because strong nuclear force binds the nucleus, silicon chips revolutionized computers, and gravity is mutual attraction.
5 Medium
5 of 14
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
The correct answer is B (nuclear model of atom) because Niels Bohr's theory was based on Rutherford's nuclear model of the atom.
6 Medium
6 of 14
Remembering +4 | -1
What is full form of GMRT?
View answer and explanation
Correct option: C
Giant Metrewave Radio Telescope
The correct answer is C (Giant Metrewave Radio Telescope) because that is the full form of GMRT.
7 Medium
7 of 14
Understanding +4 | -1
Macroscopic forces are
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because contact forces, viscous force, and surface tension are all macroscopic forces.
8 Medium
8 of 14
Analyzing +4 | -1
Assertion: In universe, gravitational force dominates in long distance and electric force dominates in short distance.

Reason: For gravitational force ∝ (mass) 2 distance 2\propto \frac{\text { (mass) }^2}{\text { distance }^2} and electric force ∝ charge 2 distance 2\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 (Both Assertion and Reason are correct and Reason is the correct explanation of Assertion) is correct because of the dependence on distance.
9 Medium
9 of 14
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 primarily rely on semiconductors, not superconductors.
10 Medium
10 of 14
Remembering +4 | -1
Which of the following is the correct decreasing order of the strengths of four fundamental forces of nature?
View answer and explanation
Correct option: D
Strong nuclear force >> electromagnetic force >> weak nuclear force >> gravitational force
The correct answer is D (Strong nuclear force >> electromagnetic force >> weak nuclear force >> gravitational force) because it represents the correct order of decreasing strength of the fundamental forces.
11 Easy
11 of 14
Understanding +4 | -1
Statement I: Electromagnetic force dominates all phenomena at atomic and molecular scales.

Statement II: Electromagnetic force is much stronger than the gravitational force.
View answer and explanation
Correct option: A
Both statement I and II are correct.
Option A (Both statement I and II are correct) is correct because electromagnetic force dominates at atomic scales and is much stronger than gravity.
12 Medium
12 of 14
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 act on the microscopic domain.
13 Easy
13 of 14
Understanding +4 | -1
Science is exploring, ...x... and ...y... from what we see around us. Here, x and y refer to
View answer and explanation
Correct option: B
Experiment, predict
Option B (Experiment, predict) is correct because science involves experimentation and prediction based on observations.
14 Medium
14 of 14
Remembering +4 | -1
According to Einstein's theory, mass (m)(\mathrm{m}) is equivalent to energy (E)(E) given by
View answer and explanation
Correct option: D
E=mc2E=m c^2
The correct answer is D (E=mc2E=m c^2) because this is Einstein's famous mass-energy equivalence equation.
Revision notes and key takeaways

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Key Takeaways

  • ✓ This set contains 14 single-correct-answer MCQs on PHYSICAL WORLD.
  • ✓ Try each question before opening its answer. Read the explanation where one is available.
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