List of top Questions asked in GUJCET

In a resistor network with resistance \( R \), what is the ratio of the total resistance when the resistances are combined in series and parallel?
In an AC circuit, the EMF is 6 V. What will be the value of the current?
A resistor of value 200Ω and capacitance 15μF are connected in series. What is the total time constant of the circuit?
The energy of a photon in a hydrogen atom is \( -13.6 \, \text{eV} \). What are the possible energies of the electron in other levels of the hydrogen atom?
The figure shows the arrangement of a magnetic dipole. What is the behavior of the magnetic field?
A 12W resistor is connected to a battery of 24V. What is the current through the resistor?
In an LCR circuit, the current is calculated to be 141.4% of the initial value. What is the resonance condition for this circuit?
In a double-slit experiment, the distance between the slits is 0.54 mm and the distance from the screen is 1.8m. If the distance between the adjacent maxima is 1.2 cm, then the wavelength of the light used in the experiment is:
If the speed of light in a medium is \( 200 \times 10^8 \, \text{cm/s} \), calculate the refractive index for this medium given that \( c = 3 \times 10^{10} \, \text{m/s} \).
In a magnetic field, if a current of 0.3 A flows for 0.75 seconds, and the magnetic field strength is 0.2 T, what will be the force experienced by the current-carrying conductor?
In a spherical shell, the potential at a point \( 2m \) from the center of the shell is equal to the potential due to a point charge \( q \) placed at the center of the shell. The potential at this point is:
A long solenoid has a magnetic field of strength \( 3 \times 10^{-7} \, \text{T} \) and a length of 1 m. The current flowing through it is 1 A. What is the magnetic dipole moment?
The energy of a photon is \( 6.63 \times 10^{-34} \, \text{Js} \). Calculate the frequency of the photon in the visible light spectrum.
For a head-on collision, calculate the total energy when the two bodies collide at a distance of 2 fm (femtometer).
The energy of a photon is 13.6 eV. Calculate the wavelength of the photon if the energy is \( 5.3 \times 10^{-11} \, \text{m} \).
If a coil is connected to an AC circuit, what will be the phase difference between the voltage and current in the circuit?
For a series combination of resistors, what is the value of \( n \) for the formula \( \frac{n}{n+1} + \frac{1}{R} = \frac{1}{R_{eq}} \)?
Two point charges are placed on either side of the system, and the electric field is applied with a voltage of 2V. If the electric potential is the same, what will be the interaction between the two charges \( P \) and \( Q \)?
B - Some proteins are found in the blood and can also interact with different enzymes. What are these proteins called?
Which of the following substances obtained from marine organisms is used for the treatment of heart vessel blockages?
What method is used for the production of "Pomato"?
Identify the incorrect statement related to the following context:
The model experiment for assessing certain types of genetically modified animals can be conducted.
Which microorganism is used in plant genetic engineering?
If a PCR reaction is carried out 30 times, how much can the DNA sequence increase?
Which of the following are signs of STIs (Sexually Transmitted Infections)?
(i) Genital itching
(ii) Bleeding
(iii) Normal pain
(iv) Abdominal swelling