Physics is a crucial subject for exams like the OSSSC LSI, Forester, and FG. To excel in these exams, it’s essential to have a strong grasp of fundamental physics principles. Multiple Choice Questions (MCQs) are a popular assessment tool in such exams, testing candidates’ understanding of various concepts. Here, we’ve compiled a list of the top 30 physics MCQs along with detailed answers and explanations to help you prepare effectively.
Top 30 Physics (General Science) MCQs for OSSSC LSI, Forester, FG
- What is the mean value of acceleration due to gravity at Earth’s surface?
[A] 0.98 meters per second
[B] 9.8 meters per second
[C] 9.8 meters per second squared
[D] 0.98 meters per second squared
[Answer: C] 9.8 meters per second squared - What are the characteristics of an ideal fluid?
[A] Zero Viscosity Only
[B] Zero Compressibility Only
[C] Zero Viscosity & Zero Compressibility
[D] None of the above
[Answer: C] Zero Viscosity & Zero Compressibility - Which natural phenomenon has the highest velocity?
[A] Hurricane
[B] Tornado
[C] Typhoon
[D] Cyclone
[Answer: B] Tornado - What is the unit of speed equal to one nautical mile per hour?
[A] Knot
[B] Mile
[C] Meter per second
[D] Kilometer per hour
[Answer: A] Knot - How many kilometers per hour is equivalent to 1 knot?
[A] 1.852 km/h
[B] 1.609 km/h
[C] 2.236 km/h
[D] 0.514 km/h
[Answer: A] 1.852 km/h - What is the ISO standard symbol for knot?
[A] kt
[B] kn
[C] kn/h
[D] km/h
[Answer: B] kn - In which fields is the knot unit commonly used?
[A] Meteorology
[B] Maritime
[C] Air navigation
[D] All of the above
[Answer: D] All of the above - Which type of fluid has almost zero viscosity and zero compressibility?
[A] Ideal fluid
[B] Real fluid
[C] Newtonian fluid
[D] Non-Newtonian fluid
[Answer: A] Ideal fluid - What is the average gravitational acceleration experienced by objects on Earth’s surface?
[A] 9.8 meters per second
[B] 9.8 meters per second squared
[C] 10 meters per second squared
[D] 10 meters per second
[Answer: B] 9.8 meters per second squared - Which type of cyclone generally occurs in the Pacific Ocean and has the highest velocity?
[A] Typhoon
[B] Hurricane
[C] Cyclone
[D] Tornado
[Answer: D] Tornado - What is the SI unit of electric current?
[A] Volt
[B] Ampere
[C] Watt
[D] Joule
[Answer: B] Ampere - What is the unit of measurement for force?
[A] Joule
[B] Watt
[C] Newton
[D] Pascal
[Answer: C] Newton - Which of the following is a vector quantity?
[A] Speed
[B] Distance
[C] Time
[D] Acceleration
[Answer: D] Acceleration - What is the unit of measurement for energy?
[A] Joule
[B] Watt
[C] Newton
[D] Pascal
[Answer: A] Joule - What is the SI unit of pressure?
[A] Pascal
[B] Newton
[C] Joule
[D] Watt
[Answer: A] Pascal - What is the SI unit of frequency?
[A] Hertz
[B] Watt
[C] Pascal
[D] Newton
[Answer: A] Hertz - Which law states that the pressure of a given mass of gas is inversely proportional to its volume at constant temperature?
[A] Boyle’s law
[B] Charles’s law
[C] Gay-Lussac’s law
[D] Avogadro’s law
[Answer: A] Boyle’s law - What is the SI unit of power?
[A] Watt
[B] Joule
[C] Pascal
[D] Newton
[Answer: A] Watt - Which of the following is a scalar quantity?
[A] Velocity
[B] Force
[C] Acceleration
[D] Speed
[Answer: D] Speed - According to Newton’s second law of motion, what is the relationship between force, mass, and acceleration?
[A] Force = Mass × Acceleration
[B] Acceleration = Force / Mass
[C] Mass = Force × Acceleration
[D] Force = Mass / Acceleration
[Answer: A] Force = Mass × Acceleration - Who was the inventor of FM Radio?
[A] Nikola Tesla
[B] Thomas Edison
[C] Guglielmo Marconi
[D] Edwin Howard Armstrong
[Answer: D] Edwin Howard Armstrong - Which method of heat transfer is primarily responsible for heating the lower layers of the atmosphere near the Earth’s surface?
[A] Radiation from Sun
[B] Radiation from Earth
[C] Conduction
[D] Convection
[Answer: B] Radiation from Earth - What is the force of attraction between any two bodies by virtue of their masses called?
[A] Electromagnetic Force
[B] Gravitational Force
[C] Centripetal Force
[D] Nuclear Force
[Answer: B] Gravitational Force - Who formulated the laws of motion?
[A] Isaac Newton
[B] Albert Einstein
[C] Galileo Galilei
[D] Johannes Kepler
[Answer: A] Isaac Newton - What is the SI unit of electric charge?
[A] Volt
[B] Ampere
[C] Coulomb
[D] Ohm
[Answer: C] Coulomb - Which particle has a negative charge?
[A] Proton
[B] Neutron
[C] Electron
[D] Photon
[Answer: C] Electron - What is the process by which a solid turns into a gas without passing through the liquid state called?
[A] Condensation
[B] Sublimation
[C] Evaporation
[D] Fusion
[Answer: B] Sublimation - Which type of lens is thicker in the middle than at the edges?
[A] Convex lens
[B] Concave lens
[C] Biconvex lens
[D] Biconcave lens
[Answer: A] Convex lens - Which of the following units describes linear momentum?
[A] kgm^2/s^2
[B] kg/ms^2
[C] kg/ms
[D] kgm/sCorrect Answer: D [ kgm/s ] - What is the unit of velocity gradient?
[A] m/s^2
[B] s^-1
[C] m/s
[D] m^-1Correct Answer: B [ s^-1 ]
