NEET Physics Important Questions - Units & Measurements

Ready to answer some challenging physics questions?

If you're here, I'm sure you're gearing up to write the NEET exam and put your preparation to test! Good, you’ve come to the right place!

We’ve curated a set of thought-provoking questions to challenge your brain and get you set for the main exam.

From unit conversions and significant figures to percentage errors and dimensions, these questions are not just about getting the right answer – they’re about understanding the concepts that make science, especially physics, fascinating.

Sharpen your pencils, grab your calculator, and let’s see how you fare with these exciting problems.

Once you’re done, check out the answers and explanations to learn from any mistakes and improve your skills.

Let’s get started!

NEET Physics Mock Test - Units & Measurements Questions

1. If the units of length, mass, and time are doubled, then the new unit of work expressed in terms of L, M and T becomes:

   1. Two Times

   2. Four Times

   3. Eight Times

   4. No Change

      
      

2. The radius of a thin wire is 0.16 mm. What is the area of cross-section of the wire in mm2 with correct number of significant figures?

   1. 0.081

   2. 0.0804

   3. 0.08

   4. 0.080457

   
   

3. Which group of the following has all quantities with the same dimensions?

   1. Momentum, Force and Impulse

   2. Young’s Modulus, Stress and Pressure

   3. Surface Tension, Force Constant and Acceleration

   4. Mass, Length, Time

   
   

4. The percentage errors in the measurement of mass and speed are 2% and 3%, respectively. How much will be the maximum error in the estimation of kinetic energy obtained by measuring mass and speed?

   1. 1%

   2. 5%

   3. 8%

   4. 11%

   
   

5. The density of a cube is measured by measuring its mass & length of its side. If the maximum errors in the measurement of mass and length are 4% and 3%, respectively, then the maximum error in the measurement of the density is

   1. 7%

   2. 9%

   3. 12%

   4. 13%

   
   

NEET Physics Mock Test - Units & Measurements Answers

1. If the units of length, mass, and time are doubled, then the new unit of work expressed in terms of L, M and T becomes:

   1. Two Times

   2. Four Times

   3. Eight Times

   4. No Change

      
      

2. The radius of a thin wire is 0.16 mm. What is the area of cross-section of the wire in mm2 with correct number of significant figures?

   1. 0.081

   2. 0.0804

   3. 0.08

   4. 0.080457

   
   

3. Which group of the following has all quantities with the same dimensions?

   1. momentum, force and impulse

   2. Young’s modulus, stress and pressure

   3. surface tension, force constant and acceleration

   4. mass, length, time

   
   

4. The percentage errors in the measurement of mass and speed are 2% and 3%, respectively. How much will be the maximum error in the estimation of kinetic energy obtained by measuring mass and speed?

   1. 1%

   2. 5%

   3. 8%

   4. 11%

   
   

5. The density of a cube is measured by measuring its mass & length of its side. If the maximum errors in the measurement of mass and length are 4% and 3%, respectively, then the maximum error in the measurement of the density is

   1. 7%

   2. 9%

   3. 12%

   4. 13%

   
   

Hope you enjoyed this set!

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