Question: Which equation is not dimensionally correct ?

• 1. E=mc2
• 2. Vf=Vi+at
• 3. S=Vt2
• 4. S=1/2at2

Question: SI unit of the coefficient of viscosity is___________________?

• 1. Kg.m.S-1
• 2. Kg m-1.S-1
• 3. Kg.m.S
• 4. Kg-1.m-1.S-1

Question: Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record ?

• 1. Only (i)
• 2. Only (ii)
• 3. Only (iii)
• 4. Both (i) and (ii)

Question: Absolute uncertainty in a measurement depends upon______________?

• 1. The magnitude of the measurement
• 2. Least count of the instrument
• 3. Percentage error in the measurement
• 4. All of a, b and C

Question: Steradian is the SI unit of________________?

• 1. Plane angle
• 2. Solid angle
• 3. Both plane angle and solid angle
• 4. Neither plane angle nor solid angle

Question: An ideal standard of measurement of a base quantity has characteristics_______________?

• 1. Accessible
• 2. Invariable
• 3. Transportable
• 4. Only a and b are correct

Question: Total uncertainty, in the result obtained from the subtraction of two measurements, is equal to_______________?

• 1. Sum of their absolute uncertainties
• 2. The difference of their absolute uncertainties
• 3. The product of their absolute uncertainties
• 4. Division of their absolute uncertainties

Question: Which one is the highest power multiple ?

• 1. Giga
• 2. Beta
• 3. Mega
• 4. Deca

Question: One pico stands for_________________?

• 1. 10 raised to power -15
• 2. 10 raised to power -12
• 3. 10 raised to power -9
• 4. 10 raised to power -6

Question: Unit of G is ______________?

• 1. Nm2Kg2
• 2. Nm2Kg
• 3. Nm2Kg-2
• 4. None