(Set 1) Unit, Measurements and Effects

Q1. 
Identify the unit of measuring intensity of sound
  1. Knots
  2. Ampere
  3. Candela
  4. Decibel

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Correct Answer : D

Q2. 
What is the unit of the physical quantity, Momentum
  1. Newton second
  2. Joule second
  3. Erg second
  4. Pascal second

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Correct Answer : A

Q3. 
Frequency is measured in
  1. hertz
  2. metre/second
  3. radian
  4. watt

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Correct Answer : A

Q4. 
What is measured in hertz
  1. Frequency
  2. Energy
  3. Heat
  4. Quality

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Correct Answer : A

Q5. 
Which one of the following physical quantities has the same unit as that of pressure?
  1. Angular momentum
  2. Stress
  3. Strain
  4. Work

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Correct Answer : B

Q6. 
Angstrom is a unit of
  1. wavelength
  2. energy
  3. frequency
  4. velocity

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Correct Answer : A

Q7. 
What is the unit of pressure
  1. Newton/sq metre
  2. Newton-metre
  3. Newton
  4. Newton/metre

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Correct Answer : A

Q8. 
The unit of pressure is
  1. kg/sq cm
  2. kg/cm
  3. kg/mm
  4. None of these

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Correct Answer : D

Q9. 
Which one of the following quantities does not have unit?
  1. Stress
  2. Force
  3. Strain
  4. Pressure

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Correct Answer : A

Q10. 
Which one of the following is not the unit of heat?
  1. Centrigrade
  2. Calorie
  3. Erg
  4. Joule

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Correct Answer : A

Q11. 
Which of the following is the SI unit of temperature?
  1. Kelvin
  2. Reaumure scale
  3. Candela
  4. Ampere

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Correct Answer : A

Q12. 
Newton-metre (N-m) is the SI unit of which of the following physical quantity
  1. Acceleration
  2. Torque
  3. Power
  4. Force

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Correct Answer : B

Q13. 
Which one of the following is the unit of force
  1. Pascal
  2. Watt
  3. Joule
  4. Newton

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Correct Answer : D

Q14. 
Light year is a unit for measurement of
  1. very large distance
  2. time interval in years
  3. amount of light received on earth in a year
  4. mass of atoms

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Correct Answer : A

Q15. 
Light year is the unit of ______
  1. length
  2. mass
  3. time
  4. area

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Correct Answer : A

Q16. 
The unit of momentum is
  1. kg.m. sq s
  2. kg.m.1/s
  3. kg.m.s
  4. kg.m. minus sq s

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Correct Answer : B

Q17. 
Which of the following quantities does not have any unit?
  1. Speed
  2. Density
  3. Relative density
  4. Acceleration

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Correct Answer : C

Q18. 
Maxwell is the unit of which one of the following
  1. Magnetic flux
  2. Permeability
  3. Magnetic susceptibility
  4. Intensity of magnetisation

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Correct Answer : A

Q19. 
The SI unit of radioactivity is ____
  1. Ampere
  2. Becquerel
  3. Decibel
  4. Cobolt

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Correct Answer : B

Q20. 
The SI unit of weight is ___
  1. kilogram
  2. newton
  3. gram
  4. dyne

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Correct Answer : A

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