List of top Physics Questions asked in JIPMER

Pure silicon doped with phosphorus is a

Hydrogen bomb is based upon

A particle moves along a straight line $OX$. At a time $t$ (in second) the distance $x$ (in metre) of the particle from $O$ is given by $ x=40+12t-t^{3} $ How long would the particle travel before coming to rest?

When a charged particle moving with velocity $\vec{ v }$ is subjected to a magnetic field of induction $\vec{ B }$ the force on it is non-zero. This implies that

Which of the following circular rods, (given radius $r$ and length $l$ each made of the same material and whose ends are maintained at the same temperature will conduct most heat?

Interference was observed in an interference chamber when air was present. Now, the chamber is evacuated and if the same light is used, a careful observation will show

$300 \,J$ of work is done in sliding a $2\, kg$ block up an inclined plane of height $10 \,m$. Taking $ g=10\,\,m/{{s}^{2}}, $ work done against friction is

For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is

In refraction, light waves are bent on passing from one medium to the second medium, because, in the second medium

The time of reverberation of a room $A$ is one second. What will be the time (in seconds) of reverberation of a room, having all the dimensions double of those of room $A$?

The absolute enthalpy of neutralisation of the reaction $MgO (s)+2 HCl (a q) \longrightarrow MgCl _{2}(a q)+ H _{2} O (l)$ will be

For the network shown in the figure, the value of the current $i$ is

Potometer works on the principle of

When a wire of uniform cross-section $ a $ , length $ l $ and resistance $R$ is bent into a complete circle, resistance between two of diametrically opposite points will be

A particle executing simple harmonic motion of amplitude $5 \,cm$ has maximum speed of $31.4 \,cm/s$. The frequency of its oscillation is

The circular motion of a panicle with constant speed is

As per this diagram a point charge $+q$ is placed at the origin $O$. Work done in taking another point charge $-Q$ from the point $A$ [coordinates $(0, a)]$

The total energy of an electron in the first excited state of hydrogen is about $- 3.4 \,eV$. Its kinetic energy in this state is

In the reaction ${ }_{1}^{2} H +{ }_{1}^{3} H \longrightarrow{ }_{2}^{4} He +{ }_{0}^{1} n$, if the binding energies of ${ }_{1}^{2} H ,{ }_{1}^{3} H$ and ${ }_{2}^{4} He$ are respectively $a, b$ and $c$ (in $MeV$, then the energy (in $MeV$ ) released in this reaction is

Two boys are standing at the ends $A$ and $B$ of a ground, where $A B=a$. The boy at $B$ starts running in a direction perpendicular to $A B$ with velocity $v_{1}$. The boy at $A$ starts running simultaneously with velocity $v$ and catches the other boy in a time $t$, where $t$ is

Carbon, silicon and germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by $\left(E_{g}\right)_{c},\left(E_{g}\right)_{S i}$ and $\left(E_{q}\right)_{ Ge }$ respectively. Which one of the following relationships is true in their case?

Fission of nuclei is possible because the binding energy per nucleon in them

An electron moves in a circular orbit with a uniform speed $ v $ . It produces a magnetic field $B$ at the centre of the circle. The radius of the circle is proportional to

The nuclei of which one of the following pairs of nuclei are isotones?

Imagine a new planet having the same density as that of earth but it is $3$ times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is g and that on the surface of the new planet is g, then