List of top Physics Questions asked in CUET (UG)

An object is placed \(30\,\text{cm}\) in front of a concave mirror of focal length \(20\,\text{cm}\). The image distance is
According to Bohr's atomic model, the angular momentum of an electron in the \(n^{\text{th}}\) orbit is
In an AC circuit containing a pure resistor, the phase difference between voltage and current is
A galvanometer of resistance \(50\,\Omega\) gives full-scale deflection when a current of \(2\,\text{mA}\) passes through it. The value of shunt resistance required to convert it into an ammeter of range \(2\,\text{A}\) is
A long straight conductor carries a current of \(10\,\text{A}\). The magnetic field at a point \(20\,\text{cm}\) away from the conductor is \((\mu_0=4\pi\times10^{-7}\,\text{TmA}^{-1})\)
In a semiconductor, the conductivity increases with increase in temperature because
Two capacitors of capacitances \(6\,\mu F\) and \(3\,\mu F\) are connected in series across a battery. The equivalent capacitance of the combination is
An object is placed \(30\,\text{cm}\) in front of a concave mirror of focal length \(20\,\text{cm}\). The image distance is
In an AC circuit containing a pure resistor, the phase difference between voltage and current is
A photon has energy \(6\,\text{eV}\). The corresponding work function of a metal is \(2\,\text{eV}\). The maximum kinetic energy of the emitted photoelectron is
Two coils have mutual inductance \(0.5\,\text{H}\). If the current in the primary coil changes at the rate of \(4\,\text{A s}^{-1}\), the induced emf in the secondary coil is
According to Bohr's atomic model, the angular momentum of an electron in the \(n^{\text{th}}\) orbit is
A galvanometer of resistance \(50\,\Omega\) gives full-scale deflection when a current of \(2\,\text{mA}\) passes through it. The value of shunt resistance required to convert it into an ammeter of range \(2\,\text{A}\) is
Three capacitors have capacitances \(2\,\mu F\), \(4\,\mu F\) and \(8\,\mu F\). When they are connected in a way to give minimum capacitance, their effective capacitance is:
Four resistors of \(8\,\Omega\) each are connected in parallel. Then five such equivalent combinations are connected in series. What will be the total resistance?
A uniform wire of resistance \(R\) is cut into four equal parts. These parts are then connected in parallel. The equivalent resistance of the combination is:
A wire of uniform cross-section \(A\), length \(l\) and resistance \(R\) is bent into a complete circle. The equivalent resistance between any two diametrically opposite points will be:
A \(10\,pF\) capacitor is connected to a \(24\,V\) battery. The electrostatic energy stored in the capacitor is:
A \(12\,pF\) capacitor is connected to a \(50\,V\) battery. The electrostatic energy stored in the capacitor is:
A network of five capacitors is shown in the figure. The total charge stored in the network connected between \(A\) and \(B\) is:
In the figure given below, the resultant capacitance between points \(A\) and \(B\) is:
Four capacitors are connected in a circuit as shown in the figure. The effective capacitance between \(P\) and \(Q\) is:
Four capacitors are connected as shown in the figure. If \(C_1=2\,\mu F\), \(C_2=3\,\mu F\), \(C_3=5\,\mu F\) and \(C_4=10\,\mu F\), then the equivalent capacitance between points \(A\) and \(B\) is:
Assertion-Reason Type Question Assertion (A): In photoelectric effect, stopping potential depends upon frequency of incident radiation.
Reason (R): Maximum kinetic energy of emitted electrons increases with frequency. Choose the correct answer from the options given below:
A photon has energy \(6\text{ eV}\). Its frequency is approximately: