In This Post we are providing Chapter-1 Physical World NCERT MCQ for Class 11 Physics which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.
NCERT MCQ ON PHYSICAL WORLD
Question 1 : Which of the following is true regarding the physical science?
- a) Both
- b) The study of matter are conducted at atomic or ionic levels
- c) None of these
- d) They deal with non-living things
Answer : Both
Question 2 : The scientific principle involves in production of ultra high magnetic fields is
- a) super conductivity
- b) photoelectric effect
- c) digital logic
- d) laws of thermodynamics
Answer : super conductivity
Question 3 : Louis de-Broglie is credited for his work on
- a) matter waves
- b) law of distribution of velocities
- c) electromagnetic theory
- d) theory of relativity
Answer : matter waves
Question 4 : Madam Marie Curie won Nobel Prize twice which were in the field of
- a) Physics and chemistry
- b) Physics only
- c) Chemistry only
- d) Biology only
Answer : Physics and chemistry
Question 5 : Scientific way of doing things involve
- a) All of the above
- b) hypothesising a possible theory
- c) collecting data
- d) identifying the problem
Answer : All of the above
Question 6 : The exchange particles for the electromagnetic force are
- a) photons
- b) gravitons
- c) gluons
- d) mesons
Answer : photons
Question 7 : Which of the following is the weakest force?
- a) Gravitational force
- b) None of these
- c) Nuclear force
- d) Electromagnetic force
Answer : Gravitational force
Question 8 :
Assertion : Electromagnetic force is much stronger than the gravitational force.
Reason : Electromagnetic force dominates all phenomena at atomic and molecular scales
- a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.
- b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
- c) Assertion is correct, reason is incorrect
- d) Assertion is incorrect, reason is correct
Answer : Assertion is correct, reason is correct; reason is a correct explanation for assertion.
Question 9 : When we hold a book in our hand, we are balancing the gravitational force on the book due to
- a) normal force provided by our hand
- b) friction force provided by our book
- c) both
- d) None of these
Answer : normal force provided by our hand
Question 10 : Which of the following has infinite range?
- a) Both
- b) Electromagnetic force
- c) Gravitational force
- d) None of these
Answer : Both
Question 11 : 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. The fossil fuels of the planet are dwindling fast and there is urgent need to discover new source of energy.
- a) I, II and III
- b) Only III
- c) I and II
- d) Only I
Answer : I, II and III
Question 12 : The field of work of S. Chandrashekar is
- a) theory of black hole
- b) theory of relativity
- c) Cosmic rays
- d) X-rays
Answer : theory of black hole
Question 13 : Who discovered X-rays?
- a) Roentgen
- b) Madam Curie
- c) Chadwick
- d) Thomson
Answer : Roentgen
Question 14 : Who gave general theory of relativity?
- a) Einstein
- b) Marconi
- c) Ampere
- d) Newton
Answer : Einstein
Question 15 : Which of the following is wrongly matched ?
- a) Humidity-Calorimeter
- b) Coulomb’s law-charges
- c) Lactometer-Milk
- d) Barometer-Pressure
Answer : Humidity-Calorimeter
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