# 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

4.None of the above

2. Isothermal

3. Isochoric

4.Isobaric

1. Isochoric

2. Isobaric

4. Isothermal

1.Isochoric

2. Isobaric

4.Isothermal

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

## 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

1.0

2.1

3.Either 0 or 1

4.2

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

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

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

1. lodestone

2.pyrrhotite

3. columbite

4.titanium

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

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

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

## More MCQS

##### R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!