Question 1 :
Calculate area enclosed by a circle of diameter $$1.06\ m$$ to correct number of significant figures.
Question 4 :
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 5 :
The dimension of magnetic induction in $$M, L, T$$ and $$C$$ (Coloumb) is given as:
Question 7 :
The amplitude of a damped oscillator of mass $$'m'$$ varies with the time  't' as $$A=A_0e^{-at/m}$$. The dimension of $$'a'$$ are:
Question 8 :
The pair of quantities that do not have the same dimensions is _________________.<br/>
Question 11 :
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 13 :
The equation of a wave is given by $$y=a sin\omega \left (\dfrac {x}{v}-k\right )$$, where $$\omega$$ is angular velocity and $$v$$ is linear velocity. The dimensions of $$K$$ will be<br/>
Question 15 :
The velocity of a moving particle depends upon time t as $$v=at+\dfrac{b}{t+c}$$. Then dimensional formula for b is?
Question 16 :
Universal gravitational constant is given by $$6.67\times { 10 }^{ -11 }N{ m }^{ 2 }{ kg }^{ -2 }$$. Then the no. of significant figures in it is:
Question 18 :
When $$24.25\times { 10 }^{ 3 }$$ is rounded off to three significant figures, it becomes :
Question 20 :
Which two of the following five physical parameters have the same dimensions?<br> A) Energy Density<br>B) Refractive Index<br>C) Dielectric Constant<br>D) Young's Modulus<br>E)Magnetic Field<br><br>
