Physics Mcqs with Answers - Mock MCQs Test

Q1 : Electric current in a solid metal conductor is caused by the movement of what ?

A: Protons B: Electrons C: Metal atoms D: Metal ions

Q2 : Which of the following is true ?

A: Lyman series is a continuous spectrum. B: Paschen series is a line spectrum in the infra red. C: Balmer series is a line spectrum in the ultraviolet. D: . the spectral series formula can be derived from the Rutherford model of the hydrogen atom.

Q3 : The core of a transformer is laminated to reduce energy losses due to__________?

A: Eddy currents B: Hysteresis C: Resistance in winding D: None of these

Q4 : The core of a transformer is laminated to reduce energy losses due to__________?

A: Eddy currents B: Hysteresis C: Resistance in winding D: None of these

Q5 : Which of the following is true ?

A: Lyman series is a continuous spectrum. B: Paschen series is a line spectrum in the infra red. C: Balmer series is a line spectrum in the ultraviolet D: the spectral series formula can be derived from the Rutherford model of the hydrogen atom.

Q6 : The core of a transformer is laminated to reduce energy losses due to__________?

A: Eddy currents B: Hysteresis C: Resistance in winding D: None of these

Q7 : An emf of 5 volt is produced by a self inductance, when the current changes at a steady rate from 3 to 2 ampere in 1 millisecond. The value of self inductance is_______?

A: zero B: 5 H C: 5000 H D: 5 mH

Q8 : Two parallel beams of positrons moving in the same direction will________?

A: repel each other B: not interact with each other C: attract each other D: be deflected normal to the plane containing the two beams.

Q9 : A piece of copper and a piece of germanium are cooled from the room temperature down to 77 K.

A: The resistance of each of them increases. B: The resistance of each of them decreases. C: The resistance of copper decreases and that of germanium increases. D: The resistance of copper increases and that of germanium decreases S

Q10 : How many electrons per second constitute a current of one micro ampere?

A: one electron B: 10 –6 electrons C: 106 electrons D: 6.25 × 1012 electrons

Q11 : In bringing an electron towards the second electron, the electrostatic potential energy of the system

A: Decreases B: increases C: remains the same D: becomes zero

Q12 : A cube of side 5 cm has a charge of 6 C. The surface density of charge is_________?

A: 100 C m–2 B: 200 C m–2 C: 300 C m–2 D: 400 C m–2

Q13 : A million electron are added to a pith ball. Its charge is________?

A: – 1.6 × 10–12 coulomb B: – 1.6 × 10–13 coulomb C: – 1.6 × 10 –18 coulomb D: – 1.6 × 10 coulomb

Q14 : Two identical metal balls with charges + 2Q and – Q are separated by some distance, and exert a force F on each other. They are joined by a conducting wire, which is then removed. The force between them will now be_________?

A: F B: F/2 C: F/4 D: F/8

Q15 : The first overtone of a stretched string of given length is 320 Hz. The first harmonic is_________?

A: 320 Hz B: 640 Hz C: 160 Hz D: 480 Hz

Q16 : What is the ratio of the velocity of sound at 4 atmosphere to that at 1 atmosphere?

A: 4 : 1 B: 1 : 1 C: 2 : 1 D: 1 : 2

Q17 : The internal energy of the system increases__________?

A: in adiabatic expansion B: in adiabatic compression C: in isothermal expansion D: in isothermal compression

Q18 : A football is kicked at 45 degrees with horizontal with K.E of E. Its K.E. at highest point is

A: Zero B: E/2 C: Option C.. D: E/(2)1/2

Q19 : An object travels at constant speed around a circle of radius 1.0 m in 2.0 seconds. What is the magnitude of its acceleration?

A: 0 B: π2 C: 2 π2 D: 4 π2

Q20 : A ball is thrown towards the earth and bounce back. During this process:

A: Direction of velocity and acceleration changes B: Direction of Displacement and acceleration changes C: Direction of Displacement and Velocity changes D: Direction of Displacement, Velocity and acceleration changes

Q21 : Potential energy means?

A: Due to position of object B: Due to motion of object C: Due to gravity D: None of these

Q22 : Atom is the smallest particall which is_________?

A: Indivisible B: Divisible C: Both D: Non of these

Q23 : Tick the correct statement_________________?

A: Moderators slow down the neutrons B: Moderators bring the neutrons to rest C: Moderators absorb the neutrons D: Moderators reflect the neutrons

Q24 : Which of the following is used to control rods in nuclear fission?

A: Graphite B: Heavy Water C: Cadmium D: All of these

Q25 : Young’s modulus is the property of __________?

A: Gas only B: Liquid only C: Solid only D: All of the above

Q26 : If electrical conductivity increases with the increase of temperature of a substance, then it is a:

A: Semiconductor B: Conductor C: Insulator D: None of the above

Q27 : Which one of the following has the highest value of specific heat?

A: Water B: Alcohol C: Methane D: Kerosene

Q28 : With the increase of pressure, the boiling point of any substance:

A: Decreases B: Increases C: Remains same D: Becomes Zero

Q29 : If a lift is going up with acceleration, the apparent weight of a body is:

A: More than the true weight B: More or less the true weight C: Less than the true weight D: Equal to the true weight

Q30 : An artificial satellite revolves round the Earth in circular orbit, which quantity remains constant?

A: Angular Momentum B: Angular Displacement C: Linear Velocity D: None of the above

Q31 : Ohm is a unit of measuring _________?

A: Resistance B: Voltage C: Current D: None of these

Q32 : If we look at the floating piece of iceberg on the sea, approximately what fraction of it is visible above the seawater level?

A: 1/6th B: 1/8th C: 1/10th D: None of these

Q33 : By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance?

A: 102 B: 1036 C: 1012 D: None of these

Q34 : What is the force of attraction between any two bodies by virtue of their masses is called?

A: Electromagnetic Force B: Gravitational Force C: Centripetal Force D: Nuclear Force

Q35 : The Capacity of doing work is called_________?

A: Work B: Energy C: Power D: Momentum

Q36 : CGS unit of Force is_________?

A: Newton B: Erg C: Dyne D: Joule

Q37 : What is the acceleration of free fall on the moon of that on the Earth ?

A: 1/6th B: 1/4th C: 1/8th D: None of these

Q38 : In fission process_______.

A: massive nucleus join together B: massive nucleus splits to form smaller fragments C: both A & B D: None of these

Q39 : What is unit of conductivity?

A: Ohm B: Watt C: mho D: None of these

Q40 : A Circle has a number of tangents equal to _________?

A: 0 B: 1 C: 2 D: Infinite

Q41 : Mirage is an example of ___________?

A: reflection of light B: refraction of light C: Refraction and total internal reflection of light D: Scattering of light

Q42 : The value of R ( Universal Gas Constant ) = ___________?

A: 8.314 J/mole K B: 6.5 J/mole K C: 1.314 J/mole K D: 10.314 J/mole K

Q43 : The value of acceleration due to gravity is minimum on which of these planets?

A: Mars B: Jupiter C: Mercury D: Neptune

Q44 : Which of the following are not deflected by electric and magnetic fields ?

A: Alpha rays B: Beta rays C: Gamma rays D: None of these

Q45 : Why the needle of iron swims on water surface when it is kept gently ?

A: It will remain under the water, when it will displace more water than its weight B: the density of needle is less than that of water C: due to surface tension D: due to its shape

Q46 : Rain drops fall from great height Which among the following statements is true regarding it?

A: they fall with that ultimate velocity, which are different for different droplets B: they fall with same ultimate velocity C: their velocity increases and they fall with different velocity on the earth D: their velocity increases and they fall with same velocity on the earth

Q47 : Which of the following statements is true when we see ‘rainbow’ ?

A: We face sun and raindrops B: The Sun remains behind us and we face raindrops C: In light rainfall, we face Sun D: The sky remains clear and the sun is at lower position in the sky

Q48 : The audio signals of TV are _____________?

A: Amplitude modulated B: Frequency modulated C: fixe modulated D: Velocity modulated

Q49 : The owl can see most clearly in total darkness because:

A: it has squint eyes B: it has light bulbs in its eyes provided by nature C: it produces infrasonic sounds D: it has large eyes with orbs directed forward, giving it binocular sight

Q50 : A photostat machine works on _____________?

A: electromagnetic image making B: magnetic image making C: thermal image making D: electrostatic image making

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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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