Question 1 :
In order to measure the period of a single pendulum using a stop clock, a student repeated the experiment for $10$ times and noted down the time period for each experiment as $5.1, 5.0, 4.9, 5.1, 5.0, 4.9, 5.1, 5.0, 4.9, 4.9$s. The correct way of expressing the result for the period is?
Question 2 :
<b></b>Volume enclosed by the sphere of diameter $1.06\ m$ to the correct no. of significant figure is:
Question 3 :
If $\mu $ is the permeability and $\epsilon $ is the permittivity then $\dfrac { 1 }{ \sqrt { \mu \epsilon  }  } $ <b></b>is equal to 
Question 4 :
The density of steel rod is $7850\ kg/m^3$, its mass is $5\ kg$.Find its volume?
Question 5 :
Fill in the blank:<br/>The last digit in the measurement gives the first $\underline{\hspace{0.5in}}$digit.
Question 6 :
A motor pumps water at the rate of $V\ { m }^{ 3 }/s$, against a pressure P ${ Nm }^{ -2 }$. The power of the motor in watt is:
Question 10 :
If force, acceleration and time are taken as fundamental quantities, then the dimensions of length will be
Question 12 :
With due regard to significant figures, the value of $ 46.7-10.04  $ is :
Question 13 :
State whether the following statement is True or False. The prefix used for $\displaystyle { 10 }^{ 3 }$ is kilo.
Question 14 :
Which of the following is used to measure the volume of a regular shaped object?
Question 15 :
With due regards to significant figures $ 5.4 \times 0.125$ is equal to:<br/>
Question 16 :
A body of mass $m =3.513\ kg$ is moving along the x-axis with a speed of $5.00{ ms }^{ -1 }$. The magnitude of its momentum is recorded as :
Question 17 :
Calculate the mean $\%$ error in five observations :<br>$80.0, 80.5, 81.0, 81.5, 82$.
Question 20 :
The volume of a sphere is $ 1.76\;{cm }^{ 3 }$. The volume of 25 such spheres according to the idea of significant figures in ${cm}^{ 3 }$ is