Physics/General Science - Physics MCQs Questions Part 2 Sample Test,Sample questions

Question:
On which of these factors the buoyancy depends?

1.Density of the fluid

2.Volume of the body

3.Both a and b

4.None of the above


Question:
What are those oscillations whose amplitude goes on decreasing with time are known as?

1.Damped oscillation

2. Maintained oscillation

3.Free oscillation

4.Forced oscillation


Question:
What causes the twinkling of stars?








1.Atmospheric refraction of starlight

2. Dispersion of starlight

3.Scattering of starlight

4. None


Question:
What do we call a cell that induces a spontaneous redox reaction to create a flow of electrical charges?

1.Voltaic cell

2. Electrolytic cell

3.Such cells dont exist

4.None of the above


Question:
What do we call the magnitude of the maximum disturbance in the medium on either side of the mean value called as?

1.Frequency

2.Angular Displacement

3.Amplitude

4. Wave number


Question:
What do we call the mode of transmission of heat by which heat travels from one part of a body to another by the actual motion of the heated particles of the body?




1. Conduction

2.Convection

3. Radiation

4.None of the above


Question:
What do we call the process in which no exchange of heat energy takes place between the gas and the surroundings?

1. Adiabatic

2. Isothermal

3. Isochoric

4.Isobaric


Question:
What do we call the process taking place at constant pressure?



1. Isochoric

2. Isobaric

3.Adiabatic

4. Isothermal


Question:
What do we call the process taking place at constant pressure?


1.Isochoric

2. Isobaric

3.Adiabatic

4.Isothermal


Question:
What happens to the frequency of the pendulum if it is suspended from the ceiling of the lift moving downward with acceleration equal to acceleration due to gravity ?

1. it increases

2. it decreases

3.No change

4.No oscillation


Question:
What happens when light travels from a denser medium to a rarer medium?

1. it slows down and bends towards the normal

2.it speeds up and bends towards the normal

3.it slows down and bends away from the normal

4.t speeds up and bends away from the normal


Question:
What is meant by Calorimetry?



1. Measurement of heat

2. Measurement of temperature

3. Measurement of specific heat capacity

4.None of the above


Question:
What is supersonic speed?

1.When the speed of any object exceeds the speed of sound

2.When the speed of any object exceeds the speed of light

3.When the speed of any object exceeds 10000 m/s

4.None of the above


Question:
What is the distance between the focus and the pole of the mirror is known as?

1.Centre of Curvature

2.Focal length

3.Mirror number

4.Radius of curvature


Question:
What is the effect of increase of temperature on the speed of sound?

1. it increases

2. it decreases

3.it may or may not increase

4. No effect


Question:
What is the output of an AND gate when both the inputs are 0?

1.0

2.1

3.Either 0 or 1

4.2


Question:
What is the phenomenon of bouncing back of light in the same medium on striking the surface of any object known as?

1.Refraction

2.Absorption

3.Reflection

4.Diffusion


Question:
What kinds of waves are the ultrasonic waves in air produced by a vibrating quartz crystal?

1.Transverse

2.Longitudinal

3.Transverse and longitudinal

4. None of the above


Question:
What of following is equivalent to 1 a.m.u?

1.1.660539 x 10-18 kg

2.1.660539 x 10-21 kg

3.1.660539 x 10-24 kg

4.1.660539 x 10-27 kg


Question:
What of following is equivalent to 1 a.m.u?

1.1.660539 x 10-18 kg

2.1.660539 x 10-21 kg

3.1.660539 x 10-24 kg

4.1.660539 x 10-27 kg


Question:
What part of eyes give it a distinctive colour?

1.Cornea

2. Iris

3.Pupil

4.Retina


Question:
Which of the following about S.H.M is correct?

1. In S.H.M. acceleration is maximum at extreme position

2. In S.H.M. velocity is minimum at extreme position

3.Both a and b

4.None of the above


Question:
Which of the following are the areas of application of Dopplers effect?

1.At airports to guide aircraft

2.in the military to detect enemy aircraft

3. Sonography

4.All of the above


Question:
Which of the following diodes is mostly commonly used as a voltage regulator?

1. LED

2. Varactor diode

3.Shockley diode

4.Zener diode


Question:
Which of the following electromagnetic waves in the EM spectrum has the shortest frequency?

1. Radio

2. Gamma

3. X-rays

4. Infrared


Question:
Which of the following is a law of reflection?

1.angle of incidence is equal to the angle of reflection

2. angle of incidence is equal to twice the angle of reflection

3.angle of incidence is equal to half of the angle of reflection

4.angle of incidence is always complimentary to the angle of reflection


Question:
Which of the following is a law of reflection?

1.angle of incidence is equal to the angle of reflection

2. angle of incidence is equal to twice the angle of reflection

3.angle of incidence is equal to half of the angle of reflection

4.angle of incidence is always complimentary to the angle of reflection


Question:
Which of the following is correct about conductors?

1.The conduction band and the valence band partly overlap each other

2.There is no forbidden energy band gap between conduction band and the valence band

3.Both a and b

4.None of the above


Question:
Which of the following is correct about Convection?




1.It is possible in solids only

2. It is possible in fluids only

3.It is possible in solids and gases only

4.None of the above


Question:
Which of the following is NOT a natural magnet?


1. lodestone

2.pyrrhotite

3. columbite

4.titanium


Question:
Which of the following is NOT a natural magnet?

1. lodestone

2. pyrrhotite

3.columbite

4. titanium


Question:
Which of the following is the phenomenon responsible for the trade winds?

1.Convection

2.Conduction

3. Radiation

4.None of the above


Question:
Which of the following is true about an ideal gas if Cp =molar specific heat capacities at constant pressure Cp= molar specific heat capacities at constant volume and R is the universal gas constant?

1. Cp + Cv = R

2.Cp/ Cv = R

3.Cp � Cv = R

4.None of the above


Question:
Which of the following is true about the focal length of a spherical mirror?

1.it is equal to its radius of curvature

2.t is equal to half its radius of curvature

3.it is equal to twice its radius of curvature

4.None of the above


Question:
Which of the following law states that if two systems are in thermal equilibrium with a third system separately then they are in thermal equilibrium with each other?

1.First law of Thermodynamics

2.Zeroth law of Thermodynamics

3.Second law of Thermodynamics

4.Third law of Thermodynamics


Question:
Which of the following principles is used to define the First law of Thermodynamics?

1.Conservation of mass

2.Conservation of energy

3.Conservation of momentum

4.Conservation of charge


Question:
Which of the following regions of electromagnetic spectrum is called as light?


1.100 nm � 1000 nm

2. 400 nm � 10000 nm

3. 100 nm � 20000 nm

4.400 nm � 750 nm


Question:
Which of the following statements about Pressure and Stress is NOT correct?

1.Pressure is always normal to the area

2. Pressure is always compressive in nature

3. Stress can be normal or tangential to the area

4. Stress is always compressive in nature


Question:
Which of the following waves are also called as heat waves?

1.UV rays

2.X-rays

3.Infrared

4.Micro waves


Question:
Which of these is used to accelerate charged particles or ions to high energies?

1.Solenoid

2.Cyclotron

3. Electric motor

4.Toroid


Question:
Which of these is used to accelerate charged particles or ions to high energies?

1.Solenoid

2.Cyclotron

3. Electric motor

4. Toroid


Question:
Which type of semiconductor do we get when pure silicon is doped with a group-3 element?

1.n-type semiconductor

2.p-type semiconductor

3.Intrinsic semiconductor

4. None


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  6. G.K Question and Answer - Physics Set V
  7. G.K Question and Answer - Physics Set VI
  8. G.K Question and Answer - Physics Set VII
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