MERIT YARD

Class 11th Physics - Physical World - MERIT YARD

Question 1 / 40Which of the following is the weakest fundamental force in nature?

A) Strong Nuclear Force

B) Electromagnetic Force

C) Weak Nuclear Force

D) Gravitational Force

Question 2 / 40Scientific method involves which of the following steps?

A) Systematic observation

B) Reasoning

C) Mathematical modeling

D) All of the above

Question 3 / 40Who discovered the law of Gravitation?

A) Isaac Newton

B) Albert Einstein

C) Galileo Galilei

D) Marie Curie

Question 4 / 40Strong nuclear force acts between:

A) Electrons and Protons

B) Protons and Neutrons

C) Neutrons and Electrons

D) Planets and Sun

Question 5 / 40The range of gravitational force is:

A) Short range

B) 10^-15 m

C) 10^-10 m

D) Infinite

Question 6 / 40The word 'Physics' comes from which language?

A) Greek

B) Latin

C) Sanskrit

D) Arabic

Question 7 / 40Who proposed the 'Wave Theory of Light'?

A) Newton

B) Christian Huygens

C) Max Planck

D) Faraday

Question 8 / 40Which force is responsible for the stability of a nucleus?

A) Strong Nuclear Force

B) Weak Nuclear Force

C) Electromagnetic Force

D) Gravitational Force

Question 9 / 40The attempt to explain diverse physical phenomena in terms of a few concepts and laws is:

A) Unification

B) Reductionism

C) Experimentation

D) Observation

Question 10 / 40Who was awarded the Nobel Prize for the discovery of the 'Photoelectric Effect'?

A) Neils Bohr

B) Albert Einstein

C) C.V. Raman

D) H.J. Bhabha

Question 11 / 40Electromagnetic force is ________ than gravitational force.

A) Weaker

B) Much stronger

C) Equal

D) Negligible

Question 12 / 40The branch of physics that deals with the motion of macroscopic objects is:

A) Classical Mechanics

B) Quantum Mechanics

C) Optics

D) Thermodynamics

Question 13 / 40Inelastic collision between a photon and a molecule is called:

A) Photoelectric effect

B) Raman Effect

C) Doppler Effect

D) Tyndall Effect

Question 14 / 40Which of the following force is a short-range force?

A) Gravitational force

B) Electromagnetic force

C) Strong nuclear force

D) Magnetic force

Question 15 / 40Which law states that energy can neither be created nor destroyed?

A) Law of conservation of energy

B) Law of conservation of mass

C) Newton's second law

D) Law of inertia

Question 16 / 40Radioactivity was discovered by:

A) J.J. Thomson

B) Henri Becquerel

C) Ernest Rutherford

D) James Chadwick

Question 17 / 40Neutron was discovered by:

A) Dalton

B) Bohr

C) James Chadwick

D) Michael Faraday

Question 18 / 40The relative strength of the Strong Nuclear Force compared to the Gravitational Force is:

A) 10²

B) 10¹⁰

C) 10²⁵

D) 10³⁸

Question 19 / 40The final verification of a scientific theory is done by:

A) Discussion

B) Experiment

C) Assumptions

D) Imagination

Question 20 / 40Physics deals with the study of:

A) Plants and animals

B) Chemical reactions

C) Nature and natural phenomena

D) Human behavior

Question 21 / 40Who is known as the father of Experimental Physics?

A) Galileo Galilei

B) Aristotle

C) Kepler

D) Maxwell

Question 22 / 40The exchange particles for electromagnetic force are:

A) Gravitons

B) Mesons

C) Photons

D) Electrons

Question 23 / 40Quantum mechanics deals with ________ objects.

A) Large

B) Microscopic

C) Astronomical

D) Rigid

Question 24 / 40Uncertainty principle was given by:

A) Schrodinger

B) Heisenberg

C) Pauli

D) Dirac

Question 25 / 40Nuclear reactor is based on:

A) Chemical reaction

B) Controlled nuclear fission

C) Nuclear fusion

D) Radio transmission

Question 26 / 40Which fundamental force has the shortest range?

A) Strong Nuclear

B) Weak Nuclear

C) Gravitational

D) Electromagnetic

Question 27 / 40A liquid jet depends on which principle?

A) Newton's law

B) Bernoulli's principle

C) Archimedes principle

D) Pascal's Law

Question 28 / 40S. Chandrasekhar is famous for his work on:

A) Cosmic rays

B) Nuclear medicine

C) Evolution of stars

D) Radio waves

Question 29 / 40Aeroplane wings are designed based on:

A) Pascal's Law

B) Bernoulli's Principle

C) Stokes Law

D) Hooke's Law

Question 30 / 40Fundamental forces in nature are ________ in number.

A) 2

B) 3

C) 4

D) 6

Question 31 / 40Which force is strictly attractive in nature?

A) Gravitational force

B) Electromagnetic force

C) Strong nuclear force

D) Magnetic force

Question 32 / 40C.V. Raman won the Nobel Prize for:

A) Spectroscopy

B) Scattering of light

C) X-rays

D) Heat transfer

Question 33 / 40Discovery of X-rays was done by:

A) Becquerel

B) W.K. Roentgen

C) Madam Curie

D) Bohr

Question 34 / 40Laws of physics are ________ across the universe.

A) Different

B) Same / Universal

C) Changing with time

D) Applicable to Earth only

Question 35 / 40Electrons revolve around the nucleus due to:

A) Strong force

B) Electromagnetic force

C) Gravitational force

D) Friction

Question 36 / 40Which force keeps the stars together in a galaxy?

A) Electromagnetic force

B) Gravitational force

C) Magnetic force

D) Centrifugal force

Question 37 / 40Classical physics does not include:

A) Mechanics

B) Optics

C) Atomic physics

D) Thermodynamics

Question 38 / 40Homi J. Bhabha is known for work in:

A) Cascade process in cosmic radiation

B) Wave theory

C) Optics

D) Steam engine

Question 39 / 40Physics and technology are:

A) Inter-dependent

B) Independent

C) Opposite to each other

D) Same things

Question 40 / 40The range of Weak Nuclear Force is:

A) 10^-2 m

B) 10^-16 m

C) 10^-10 m

D) Infinite

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