List of top Questions asked in GUJCET- 2025

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?
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 \( 6.63 \times 10^{-34} \, \text{Js} \). Calculate the frequency of the photon in the visible light spectrum.
The energy of a photon is 13.6 eV. Calculate the wavelength of the photon if the energy is \( 5.3 \times 10^{-11} \, \text{m} \).
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 \( Q \)?
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 \( \frac{n}{n+1} + \frac{1}{R} = \frac{1}{R_{eq}} \)?
A woman experiences her menstrual cycle starting at 14 years and menopause at the age of 46. At the start of menstruation, she can conceive and has children. During her reproductive period, how many ova are produced?
For a normal pregnancy, data compression does not happen, so which hormone does the doctor inject to stimulate the pregnancy?
In the given flowchart related to nitrogen cycle, choose the correct option for X and Y.
Atmospheric Nitrogen → Biological Nitrogen Fixation → (X) → Nitrates Ammonification → (Y)
What is the role of nitrogen-fixing bacteria in the ecosystem?
The event of species extinction differs from the earlier extinction and the first five extinctions because the main difference is that this extinction...
In the given diagram, identify the structure labeled 'X' and select the correct number of cells.
Which of the following are auxiliary ducts in the female reproductive system?
Which statement about MTP (Medical Termination of Pregnancy) is not true?
Which hormone is responsible for the increased secretion in the male reproductive system?