List of top Questions asked in JIPMER MBBS

A man is watching two trains, one leaving and the other coming in with equal speeds of 4m/sec. If they sound their whistles, each of frequency 240 Hz, the number of beats heard by the man (velocity of sound in air = 320 m/sec) will be equal to

The ionization energy of hydrogen atom is 13.6 eV. Following Bohr's theory, the energy corresponding to a transition between 3rd and 4th orbit is

A band playing music at frequency f is moving towards a wall at a speed \(v_b\). A motorist is following the band with a speed \(v_m\). If v is the speed of sound, the expression for the beat frequency heard by the motorist is

Fusion reactions take place at high temperature because

If \(N_0\) is the original mass of the substance of half-life period \( t_{\frac12} = 5\) years, then the amount of substance left after 15 years is

Lenz law is based in principle of conservation of:

Which of the following parameters is the same for all hydrogen-like atoms and ions in their ground states?

A radioactive element forms its own isotopes after three consecutive disintegrations. The particles emitted are

When hydrogen atom is in its first excited level, it's radius is

If balls collides elastically with fixed wedge and travels horizontally. Find h/H for maximum horizontal range:

A man moving with 2 m/s of 75 kg in west and another man of 50 kg is moving at 4 m/s in north collides in elastically and move together. Find final direction of motion:

Find resonance frequency in the given circuit:

If frequency of a photon is\( 6×10^4 Hz\), then find its wavelength[speed of light, \(C= 3×10^8 m/s\)]

If a ball of mass 0.1 kg hits the ground from the height of 20 m and bounce back to the same height then find out the force exerted on the ball if the time of impact is 0.04 sec (g = 10 m/s2)

A projectile of man 1 kg is projected with a speed of 10 m/s at an angle of 60° from the horizontal when projectile is at its highest point, its magnitude of angular momentum (about point of projection):

2 wire of same material having radius in ratio 2:1 and lengths in ratio 1:2. If same force is applied on them, then ratio of their change in length will be:

What is dimensions of energy in terms of linear momentum(P), area (A) and Time(T)

A galvanometer of 50 \(\Omega\) resistance has 25 division. A current of \(4×10^{-4} A\) gives a deflection of one division. To convert this galvanometer into a voltmeter having a range of 25 V, it should be connected with a resistance of:

Given the potential difference \( V(x) = -x^2 y \) volts, find the electric field at the point (1, 2).

A man applying force of 20 Non an object at an angle of 60° from the horizontal direction then work done by the force on the object is-

Ratio of charge on postern to mass of positron isapproximately.

In the given circuit find the voltage across 12 resistance.

Find out the rise in column of liquid with in a fine capillary tube (if density of liquid = \(10^3\), angle of contact = 60° acceleration due to gravity= 10 m/s2) surface tension = \(70×10^{-3} N/m, r = 0.2\) mm

A proton enters a uniform magnetic field (in the x direction) with a strength of \(\frac{\pi}{2}\) times its \(\left(\frac{m}{q}\right)\) ratio at an angle of \(90^\circ\) to the magnetic field. Determine the velocity of the proton after 4 seconds if the initial velocity was \(2(\sqrt{3}\hat{i} + \hat{j})\).

A satellite revolve in radius R has a time period of revolutionT. Find time period of a satellite if orbital radius is 9R?