List of top Physics Questions asked in JEE Advanced

Two bars of radius r and 2rare kept in contact as shown. An electric current I is passed through the bars. Which one of following is correct ?
Function $ x = A sin ^2 \omega t + B cos^ 2 \omega t + C sin \omega t cos \omega t $ represents SHM
For spherical symmetrical charge distribution, variation of electric potential with distance from centre is given in diagram. Given that $ \, \, \, \, \, V=\frac{1}{4 \pi\varepsilon_0 R_0}\, for\, r \le R_0$ and $ V=\frac{1}{4 \pi\varepsilon_0 R_0}\, for\, r \ge R_0$ Then, which option(s) are correct
System shown in figure is in equilibrium and at rest. The spring and string are massless, now the string is cut. The acceleration of mass 2m and m just afterthe string is cut will be
Half-life of a radioactive substance A is 4 days. The probability that a nucleus will decay in two half-lives is
Which of the following statement is (are) correct in the given figure ?
A solid sphere of radius R has moment of inertia I about its geometrical axis. It is melted into a disc of radius r and thickness t. If it's moment of inertia about the tangential axis (which is perpendicular to plane of the disc), is also equal to I, then the value of r is equal to
A solid sphere is in pure rolling motion on an inclined surface having inclination $?$
A double star system consists of two stars A and B which have time periods $T_ A $ and $T_B $ . Radius $ R_A $ and $ R_B $ and mass $ M_A $ and $M_B $ . Choose the correct option
The graph between object distance u and image distance v for a lens is given below. The focal length of the lens is
Which of the following rays can be polarised?
A rigid container with thermally insulated walls contains a coil of resistance 100 $\Omega$, carrying current 1 A. Change in internal energy after 5 min will be

A photon collides with a stationary hydrogen atom in the ground state inelastically. The energy of the colliding photon is 10.2 eV. After a time interval of the order of microseconds, another photon collides with the same hydrogen atom inelastically with an energy of 15 eV. What will be observed by the detector?

Find out the value of current through $2\Omega$ resistance for the given circuit.
A moving coil galvanometer of resistance $100 \Omega$ is used as an ammeter using a resistance $0.1 \Omega$. The maximum deflection current in the galvanometer is $100 \mu A$. Find the current in the circuit, so that the ammeter shows maximum deflection.
A simple pendulum has time period $T_1$. The point of suspension is now moved upward according to the relation $y = kt^2, (k = 1ms^{-2})$ where y is the vertical displacement. The time period now becomes $T_2$. The ratio of $\frac{T^2_1}{T^2_2}$ is $(Take\,g = 10ms^{-2})$
Water of volume 2 L in a container is heated with a coil of 1 kW at 27$^{\circ}$C. The lid of the container is open and energy dissipates at rate of 160 J/s. In how much time temperature will rise from 27$^{\circ}$C to 77$^{\circ}$C? [Specific heat of water is 4.2 kJ/kg]
A convex lens is in contact with concave lens. The magnitude of the ratio of their focal length is of the ratio of their focal length is $\frac{3}{2}$ Their equivalent focal length is 30 cm. What are their individual focal lengths ?
In which of the following process, convection does not take place primarily?
If a star can convert all the He nuclei completely into oxygen nuclei. The energy released per oxygen nuclei is : (Mass of the helium nucleus is 4.0026 amu and mass of oxygen nucleus is 15.9994 amu)
An infinitely long cylinder is kept parallel to an uniform magnetic field B directed along positive z-axis. The direction of induced current as seen from the 2-axis will be
A particle moves in a circular path with decreasing speed. Choose the correct statement
Calorie is defined as the amount of heat required to raise temperature of 1 g of water by 1$^{\circ}$C and it is defined under which of the following conditions ?
A container is filled with water ($\mu$ = 1.33) up to a height of 33.25 cm. A concave mirror is placed 15 cm above the water level and the image of an object placed at the bottom is formed 25 cm below the water level. The focal length of the mirror is
A particle starts from rest. Its acceleration (a) versus time (t) is as shown in the figure. The maximum speed of the particle will be