Physics MCQs with Answers – Free Bio MCQs Test for All Topics

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Q1 : Which one is true for internal energy ?

A: It is sum of all forms of energies associated with molecules of a system B: It is a state function of a system C: It is proportional to transnational K.E of the molecules D: All are correct

Q2 : Standard condition STP refer to a gas at ___________________?

A: 76cm 0°C B: 760mm 273K C: 1atm 273K D: all of the above

Q3 : At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?

A: 460°C B: 280°C C: 360°C D: 160°C

Q4 : the area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?

A: at any instant B: averagely C: during its operation D: during one cycle

Q5 : For a gas obeying Boyles law if the pressure is doubled the volume becomes________________?

A: double B: one half C: four times D: one fourth

Q6 : Triple point of water is_____________________?

A: 273°C at 6.11 Kpa B: 273K at 61.6 Kpa C: 273.16°C at 0.611 Kpa D: 273.16K at 750 Kpa

Q7 : Which of the following properties of molecules of a gas is same for all gases at particular temperature ?

A: momentum B: mass C: velocity D: kinetic energy

Q8 : Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?

A: K = RNa B: K = R/Na C: K = Na/Ra D: K = nRNa

Q9 : Average translational kinetic energy per molecule of an ideal gas is given by_____________?

A: 3NaT/2R B: 2NaT/3 C: 3RT/2Na D: 3Na/2RT

Q10 : In which process entropy remains constant________________?

A: isobaric B: isochoric C: adiabatic D: isothermal

Q11 : Adiabatic process is also called______________?

A: Heat exchange process B: Heating process C: Isentropic process D: All of the above

Q12 : The work done in the isochoric process is________________?

A: constant B: variable C: zero D: depends on situation

Q13 : For the successful operation of Heat engine which condition should be met ?

A: cyclic process B: operated at certain temperature difference C: both A and B D: none of these

Q14 : The purpose of flywheel in the engines is________________?

A: to smooth out the energy variation B: to add more weight to engine to work it stable C: start engine D: both A and B

Q15 : Petrol engine is a________________?

A: C.I engine B: SI engine C: IC engine D: all the above

Q16 : Which quantity is a state function_______________?

A: internal energy B: heat supply C: pressure D: volume

Q17 : The performance of a refrigerator is described by________________?

A: efficiency B: coefficient of performance C: both A and B D: not described

Q18 : In which process all the heat supplied is converted into work done ?

A: isothermal B: isochoric C: isobaric D: isentropic

Q19 : The value of γ for diatomic gas is_______________?

A: 1.67 B: 1.4 C: γ = 1.3 D: None

Q20 : A stone is thrown upward from the top of a 59.4m high cliff with an upward velocity component of 19.6m/s how long is the stone in the air?

A: 4.00 s B: 5.00 s C: 6.00 s D: 7.00 s

Q21 : The average acceleration caused by gravity per second is____________?

A: 22 feet B: 32 feet C: 52 feet D: 42 feet

Q22 : Which of the following branch of Physics deals with the internal structure of earth?

A: Biophysics B: Geophysics C: Plasma physics D: Atomic physics

Q23 : Name the SI unit having the symbol cd?

A: Candela B: Cm C: Ampere D: Second

Q24 : The symbol of the prefix used for Mega is_______?

A: g B: h C: m D: e

Q25 : Which of the following is not derived quantity________?

A: Time B: Density C: Volume D: Area

Q26 : The least count of Vernier caliper is ________ containing 10 Vernier scale divisions?

A: 0.001mm B: 0.01mm C: 0.1mm D: 0.0001mm

Q27 : Which one of the following is not vector quantity _______?

A: Acceleration B: Displacement C: Speed D: Force

Q28 : Who were the pioneers of Physics?

A: Egyptians B: Greek C: Latin D: Persians

Q29 : Which of the following waves have smallest velocity in vacuum?

A: Ultraviolet B: Sound C: Infra-Red D: Micro

Q30 : Read More Details about this Mcq: The turning effect of force is called_________?

A: Moment B: Momentum C: Torque D: None of these

Q31 : The most suitable unit for expressing nuclear radius is_______?

A: Angstrom B: Micro C: Nano meter D: Fermi

Q32 : Which one of the following is not a radioactive element ?

A: Cadmium B: Thorium C: Radium D: Uranium

Q33 : Oil rises up to wick in a lamp because_____________?

A: Oil is very light B: Oil is volatile C: Diffusion of oil through the wick D: Capillary action phenomenon

Q34 : Newton’s Third Law of Motion?

A: every action there is an equal and opposite reaction. B: attraction or repulsion between two charges C: volume of a given mass of gas increases or decreases D: temperature remaining constant, volume of a given mass of a gas varies inversely

Q35 : Medium which sends signal from source to destination is known as ________ ?

A: Transmitter B: Transmission channel C: Receiver D: Hardware

Q36 : Joule Thomson effect is based upon __________ ?

A: Sudden compression of gases B: Sudden expansion of gases C: Cooling of gases D: Heating of gases

Q37 : Rutherford in his atomic model could not explain behavior of ___________ ?

A: Electrons B: Protons C: Neutrons D: Neutrino

Q38 : Mach number is used in connection with the speed of___________?

A: Ship B: Light C: Sound D: aircraft

Q39 : The mass-energy relation is the outcome of____________?

A: Quantum theory B: General theory of relativity C: Special theory of relativity D: None of these

Q40 : The centripetal acceleration produced in a rotating body is commonly due to change on_________of body?

A: magnitude B: direction C: both D: None of these

Q41 : Gravitation force of earth is___________?

A: 9.80 m/s² B: 7.21 m/s² C: 1.62 m/s² D: None of these

Q42 : Gravitation force of sun is__________?

A: 274 m/s² B: 362 m/s² C: 300 m/s² D: None of these

Q43 : Gravitation force of moon is_________?

A: 7.2 m/s² B: 1.62 m/s² C: 9.8 m/s² D: 3.75 m/s²

Q44 : A force applied on a body through the string is called_________?

A: Weight B: Momentum C: Tension D: Torque

Q45 : Which instrument is suitable to measure the internal diameter of a test tube?

A: Vernier Callipers B: Screw Gauge C: Bore Gauge D: None

Q46 : The efficiency of the Carnot engine working between 150°C and 50°C is__________?

A: 50% B: 100% C: 23.6% D: 29.4%

Q47 : Farad is the unit of___________?

A: inductance B: voltage C: capacitance D: None of these

Q48 : The speed of light will be minimum while passing through ?

A: Vaccum B: Glass C: Water D: Air

Q49 : A Stone thrown from the top of a tall building follows a path that is:

A: Circular B: Made of two straight line segments C: Hyperbolic D: Parabolic

Q50 : A force On particle is conservative if:________?

A: It’s works equals the change in the kinetic energy of the particle. B: It’s obeys Newton’s second law C: It’s obeys Newton’s third law D: It work depends on the end points of every motion, not on the path between.

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Physics MCQs with Answers – Free Bio MCQs Test for All Topics

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Physics MCQs with Answers – Free Bio MCQs Test for All Topics

Looking for Physics MCQs with answers? Get topic-wise Bio MCQs tests for NEET, MDCAT, and competitive exams. Practice now and test your knowledge with educatehow.com

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