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1500 Important Physics MCQ Question and Answer PDF

4000 Important General Science MCQ Question & Answer in PDF Download

1.What is the SI unit of frequency?

  • ANewton
  • BWatt
  • CFarad
  • DHertz
Answer / Hint Save Question
Correct Answer : (D)

Hertz
Explanation:

2.Soap bubble attains spherical shape due to  _________ .

  • AInertia
  • BPressure
  • CSurface tension
  • DViscosity
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

Surface tension
Explanation:

3.If the mass of an object is 60 kgs, what will be its weight on the moon? (N=Newton)

  • A60N
  • B600N
  • C100N
  • D10N
Answer / Hint Save Question
Correct Answer : (C)

100N
Explanation:

4.According to the Seconds Law of Motion, for a given force, acceleration is inversely proportional to the  _________  of an object.

  • ADensity
  • BVolume
  • CForce
  • DMass 
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

Mass 
Explanation:

5.The distance-time graph for the motion of an object moving with a constant speed is a 

  • ADot
  • BCircle
  • CStraight Line
  • DCurve
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

Straight Line
Explanation:

6.Newton-meter (Nm) is the SI unit of which of the following physical quantity?

  • AAcceleration
  • BTorque
  • CPower
  • DForce
Answer / Hint Save Question
Correct Answer : (B)

Torque
Explanation:

7.How many Watts are there in a Metric Horse Power?

  • A736
  • B646
  • C546
  • D446
Answer / Hint Save Question
Correct Answer : (A)

736
Explanation:

8.Due to which of the following reason soap bubbles look colourful in white light?

  • ADiffraction
  • BScattering
  • CReflection
  • DInterference
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

Interference
Explanation:

9.If action and reaction were to act on the same body,  _________ .

  • AThe resultant would be zero
  • BThe body would not move at all 
  • CBody will start moving
  • DOnly (a) and (b) is correct
Answer / Hint Save Question Comment On Question
Correct Answer : (A)

The resultant would be zero
Explanation:

If action and reaction were to act on the same body, the resultant would be zero.

10.Measurement means the comparison of an unknown quantity with some known fixed quantity called a  _________ .

  • AUnit
  • BScale
  • COrder
  • DStandard
Answer / Hint Save Question
Correct Answer : (A)

Unit
Explanation:

11.Which of the following is not a vector quantity?

  • ADisplacement
  • BSpeed
  • CAcceleration
  • DForce
Answer / Hint Save Question
Correct Answer : (B)

Speed
Explanation:

12.Under which condition real gas can work as an ideal gas?

  • AHigh pressure and low temperature
  • BLow pressure and high temperature
  • CHigh pressure and high temperature
  • DLow pressure and low temperature
Answer / Hint Save Question Comment On Question
Correct Answer : (B)

Low pressure and high temperature
Explanation:

At Low pressure and high temperature real gas can work as an ideal gas.

13.Density of water  _________ when it freezes.

  • ADecreases
  • BIncreases 
  • CRemain constant
  • DNo option is correct
Answer / Hint Save Question
Correct Answer : (A)

Decreases
Explanation:

14.A body of mass 4 kg accelerates from 15 m/s to 25 m/s in 5 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

  • A32
  • B8
  • C16
  • D64
Answer / Hint Save Question
Correct Answer : (B)

8
Explanation:

15.During  __________ motion of an object along a straight line, the change in velocity of the object for any time interval is zero.

  • ALinear
  • BTranslational
  • CEquilibrium
  • DUniform
Answer / Hint Save Question
Correct Answer : (D)

Uniform
Explanation:

16.Which among the following types of coal produces most heat per unit?

  • ACoal
  • BLignite
  • CAnthracite
  • DPit
Answer / Hint Save Question
Correct Answer : (C)

Anthracite
Explanation:

17.When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance?

  • AFour times
  • BTwo times
  • CHalf
  • DOne-fourth
Answer / Hint Save Question Comment On Question
Correct Answer : (A)

Four times
Explanation:

18.When a ring of metal is heated, its hole will be

  • AExpands
  • BContracts
  • CIt expands or contracts according to its diameter
  • DIt expands or contracts according to its coefficient of expansion
Answer / Hint Save Question Comment On Question
Correct Answer : (A)

Expands
Explanation:

19.Why the needle of iron swims on water surface when it is kept gently?

  • AIt will remain under the water, when it will displace more water than its weight
  • BThe density of needle is less than that of water
  • CDue to surface tension
  • DDue to its shape
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

Due to surface tension
Explanation:

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

  • AThey fall with that ultimate velocity, which are different for different droplets
  • BThey fall with same ultimate velocity
  • CTheir velocity increases and they fall with different velocity on the earth
  • DTheir velocity increases and they fall with same velocity on the earth
Answer / Hint Save Question
Correct Answer : (A)

They fall with that ultimate velocity, which are different for different droplets
Explanation:
4000 Important General Science MCQ Question & Answer in PDF Download

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