List of top Questions asked in JIPMER MBBS

In a LC circuit angular frequency at resonance is ω. What will be the new angular frequency when inductor's inductance is made 2 times and capacitance is made 4 times?

\(e^-\) revolving with speed V is producing magnetic field B at center. Find relation between radius of path, B & V?

Find ratio of radius of gyration of a disc and ring of same radii at their tangential axis in plane.

\(5sin \frac \pi 2(100t -2x)\)
what is the time period?

A organ pipe open on both ends in the nth harmonic is in resonance with a source of 1000 Hz. The length of pipe is 16.6 cm and speed of sound in air is 332 m/sec. Find the value of n.

Find density of ethanol

A \(e^-\) when accelerated by \(V\) volts experiences a force \(F\) when it enters a uniform magnetic field. What will the force experience when it is accelerated by \(2V\) volts ?

Which of the following is fusion?

If the efficiency of the engine is 50%, and its work output is 500 J. Find input?

What is the range of a projectile thrown with velocity 98 m/s with angle 30° from horizontal?

A ball of 0.5 kg collided with wall at 30° and bounced back elastically. The speed of ball was 12 m/s. The contact remained for 1 sec. What is the force applied by wall on ball?

The efficiency of heat engine is \(\frac 16\), its efficiency is doubled when the temperature of sink decreases by 62°C, its efficiency doubles. Then what is the temperature of source?

Kinetic energy of a particle increased 4 times. What will be the relation between initial and final momentum.

Find I in shown figure

A force of 10 N acts on a body of mass 0.5 kg for 0.25 sec starting from rest. What is its momentum now?

Which of the following compound can exhibit tautomerism?

How much intense is 80 db sound in comparison to 40 dB?

If M is element of actinoids series, the degree of complex formation decreases in the order.

A chemical reaction was carried out at 300 K and 280 K. The rate constant were found to be \(k_1\) and \(k_2\) respectively, then

A current is flowing through the wire of diameter \(d\) having drift velocity of electron \(v_d\) in it. What will be new drift velocity when diameter of wire is made \(\frac d4\) ?

Red blood cells are placed in a solution and neither haemolysis nor crenation occurs. Therefore, the solution is

Which of the following is the correct sequence of step involved in the mechanism of Cannizzaro reaction?

When phenol is treated with \(CHCl_3\) and \(NaOH\) followed by acidification, salicylaldehyde is obtained. Which of the following species is involved in the above mentioned reaction as intermediates?

When hydrogen peroxide is added to acidified solution of dichromate \(Cr_2O_7^{2-}\), a deep blue coloured complex of chromic peroxide \(CrO_5\) is formed. Oxidation state of \(Cr\) in \(CrO_5\) is

Which of the following is disproportionation reaction?