1st Year Physics Chapter 1 TestMeasurements

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following is a derived quantity?

   1. Force

   2. Mass

   3. Length

   4. Time

2. Which is the base quantity?

   1. Area

   2. Volume

   3. Length

   4. Density

3. One giga is equal to:

   1. 10⁹

   2. 10^-9

   3. 10¹²

   4. 10^-12

4. The solid angle subtended at the centre of sphere by an area of its surface equal to the square of radius of the sphere is called:

   1. Degree

   2. Redian

   3. Minute

   4. Steradian

5. In a simple pendulum experiment percentage uncertainty in L are 0.5% and 1.5% respectively. The Maximum percentage uncertainty in LT² is:

   1. 2.5 %

   2. 2%

   3. 3.5%

   4. 4%

6. Which pair has same dimensions?

   1. Work and power

   2. Momentum and impulse

   3. Force and torque

   4. Torque and power

7. If a scale always read 2 kg. heavier that the actual value, the measurements are:

   1. Precise but not accurate

   2. Accurate but not precise

   3. Both Precise and accurate

   4. Neither precise nor accurate

8. Which instrument is more precise for measuring small lengths?

   1. Metre rule

   2. Measuring tape

   3. Protractor

   4. Vernier Callipers

9. The answer of the product (2.8723 x 1.8) to the appropriate number of significant figures is:

   1. 4.59568

   2. 4.595

   3. 4.59

   4. 4.6

10. The answer of the mathematical division (45.26.0) in appropriate number of significant figures is:

    1. 7.5

    2. 7.53

    3. 7.533

    4. 7.5333