NEET 2019 Exam Paper (Odisha) (180 Q) - Mock Test

The metre bridge shown is in a balanced position with $\frac{P}{Q}=\frac{l_1}{l_2}$. If we now interchange the position of the galvanometer and the cell, will the bridge work? If yes, what will be the balanced condition?

An object kept in a large room having an air temperature of $25^{\circ }\text{C}$ takes $12\text{min}$ to cool from $80^{\circ }\text{C}$ to $70^{\circ }\text{C}$. The time taken to cool for the same object from $70^{\circ }\text{C}$ to $60^{\circ }\text{C}$ would be nearly:

A person travelling in a straight line moves with a constant velocity $v_1$ for a certain distance $x$ and with a constant velocity $v_2$ for the next equal distance. The average velocity $v$ is given by the relation:

An object of mass $500\text{g}$ initially at rest is acted upon by a variable force whose $x$ -component varies with $x$ in the manner shown. The velocities of the object at the points $x=8\text{m}$ and $x=12\text{m}$ would have the respective values of nearly:

A mass falls from a height $h$ and its time of fall is recorded as $t$ in terms of time period $T$ of a simple pendulum. On the surface of the earth, it is found that $t=2T$. The entire setup is taken on the surface of another planet whose mass is half of that of the Earth and whose radius is the same. The same experiment is repeated and corresponding times are noted as $t^{\prime }$ and $T^{\prime }$. Then we can say: