GUJCET Physics Unofficial Answer Key 2025 (Available): Set-wise solutions PDF download

GUJCET Physics Unofficial Answer Key 2025: GUJCET Physics exam 2025 is held today, March 23, 2025 from 10 AM to 12 PM. The test takers are advised to stay connected with this news to get updates on GUJCET Physics answer key. Note that once the examination ends, the experts and several coaching institutes will release the unofficial keys for the GUJCET Physics exam and the same will be updated here. Though the answer key will be unofficial in nature, however, the answers will be perfectly correct. To calculate the total obtainable marks before releasing the GUJCET result, the candidates can consider the unofficial answer key. Candidates will get 1 mark for every correct answer and will be deducted 0.25 marks for every wrong answer. Therefore, the total obtainable marks in GUJCET Physics exam is equivalent to (Total correctly answered questionsX1)- (Total incorrect marked answersX0.25).

GUJCET Physics Unofficial Answer Key 2025

Candidates can find out the set-wise GUJCET Physics unofficial answer key here in the following table:

Questions	Correct Answers
1) In the given circuit, potential difference between points P and Q is	20V
2) The ratio of magnetic field at the centre of the ring of radius R to the point on the axis at a distance 2√2R from its centre is	27:1
3) The dimensional formula of current sensitivity of moving coil galvanometer is	A-1
4) The horizontal component of the Earth's magnetic field at a certain plate is 3X10-5 T and the direction of the field is from the geographic South to the geographic North A very long straight conductor is carrying a steady current of IA. What is the force per unit length on it when it is plz ed on a horizontal table and the direction of currentis South to North?	Zero
5) The magnetic field produced by a very long straight conducting wire of radius'a and carrying current 1 is B) then the graph of magnetic field (13) -> distance (r) (perpendicular to the axis of the wire) is
6) A paramagnetic substance is placed in a non-uniform magnetic field, then	To move from a region of weak magnetic field to strong magnetic field
7.  As shown in figure two identical conducting rings of radius are placed in magnetic field. In figure (a) magnetic field increasing at the rate of 0.3 T/s and in figure (b) magnetic field decreasing at the rate of 0.2 T/s. The direction of current in ring (a) and ring(b), when observe from top are_____	Anticlockwise, Anriclockwise
8) A pair of adjacent colls has a mutual inductance of 2H. If the current in one coil changes from 0 to 30A in 0.15s, what is the change of flux linkage with the other coil?	60Wb
9) In an AC generator, induced emf E= 0 at t= 0, then its value	Maximum at time π/2ω
10) What is the approximate percentage value of maximum voltage to its rms value in LCRAC Circuit?	141.4%
11) In which of the following AC circuit, we get the value of power factor 1 at resonance condition?	LCR Series Circuit
12) The output voltage of a step-down transformer is measured to be 24V, when connected to a 12 watt light bulb. The value of the peak current is____	1/√2A
13) ____used in medicine to destroy cancer cells.	Gamma rays
14) The speed of light in a medium is 200X105 cm/s. Refractive index of a medium is _______ (c = 3X108 m/s) .	1.5
15) What is the power of combination of convex lens and concave lens of equal foeni length 25 cm?	Zero
16) At what angle of incidence should a ray of light incident on a face of an equilateral prism of minimum angle of deviation is 46°	53°
17) If the tube-length (L) of a compound microscope increases, then its magnificaton _______.	Increases
18) Two waves of same intensity 1 emitted from two sources having same phase difference (Φ). Due to superposition of two waves, the intensity of rezultant wave is directly proportional to____	cos2(Φ/2)
19) For light diverging from a point source___	The wavefront is spherical
20) In Young's double slit experiment, the slits are separated by 0.54 mm and the screen is placed 1.8m away. The distance between central bright fringe and sixth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.	600 nm
21) The minimum value of electric field required to pulled out electrons from a metal is approximately V/cm.	106
22) Monochromatic light of frequency 6x1014 Hz is produced by a laser. The power emitted is 4X10- 3 W How many photons per second on an average are emitted by the source? [h = 6.63X10- 34 Js]	1x1016 Photons per second
23) What is the de-Broglie wavelength of a bullet of mass 0.033 kg travelling at the speed of 1km / s ? (h = 6.6X10 - 34 Js)	2X10-35m
24) According to Bohr's model, the orbital angular momentum of electrons in third excited state is [h = 6.63X10-34 Js]	4.2X10-34 kgm2s-1
25) 13.6 eV energy is required to separate a hydrogen atom into proton and an electron. If the orbital radius of an electron in hydrogen atom is 5.3X10 - 11 m, then velocity of electron is	2.2X106ms-1
26) The ground state energy of hydrogen atom is -13.6 eV. The potential and kinetic energies of the electron in this state______.	-27.2cV, +13.6eV
27) Calculate the height of the potential barrier for a head on collision of two deuterons. (Radius of deuteron is 2 fm).	5.76X10-14J
28) Choose correct option to complete the net effect of fusion reaction occurs in the Sun.
29. _____ pair is called isotones.
30. What is the current flowing through the given circuit? A given diode is an ideal diode.	10mA
31) When a reverse bias is applied to a p-n junction,it ______	Raises the potential barrier
32) A filter circuit used in a rectifier, the value of load resistance and capacitance are 200 Ω and 15mμF Then the value of time constant is _____.	3 ms
33) The electric field due to point charge 2q at a distance r is E. Now, charge q is uniformly distributed over a thin spherical shell of radius R, the electric field at a distance r/2 (r >> R) from the centre of the thin spherical shell is E'=_____	2E
34) 15 charges, each of value q are placed on X - axis at an equal distance 0.5R. The maximum electric flux associated with the spherical closed surface of radius 1.5R, in which one of the charges at the centre is ______.	7q/E0
35) In the absence of gravity, a charge q and mass 2m is placed stationary in a uniform electric field of intensity E. When the charge is released, its speed after n seconds is____	qEn/2m
36) As shown in figure charges +q, +q. -q and -q are placed on the vertices of square, cach side length is 2l. The electric potential at mid-point 'A' of charges +q and +q is______.	2kg/l[1-(1/√5]
37) Charge 1.6X10-7C are distributed uniformly over the surface of spherical conductor of radius R. The ratio of electric potential inside the spherical conductor to the electric field on the surface is_______	R
38) The potential difference between two plates of parallel plate capacitor is 2V. As shown in figure electrons are placed at point P and Q. So	Electric forces acting on both the electrons are same
39) The drift velocity of an electron is vd in a conductor of area of cross-section A and carries a current I. Now, the area of cross-section and current flowing through the conductor are double, then new drift velocity of the electron is ______.	Vd
40) As shown in the figure, balanced condition of Wheatstone bridge is n= _____.	1/2

Note that the GSEB will release the GUJCET official answer key 2025 soon, tentatively after 7 to 10 days from the date of examination on the official website. Also, the candidates will have the provision to raise objections against the GUJCET answer key if there are any errors in it. 

GUJCET Answer Key 2025 Subject-Wise |

Candidates can find out the GUJCET 2025 answer key of the other subjects here in the following table:

Other Important Links |

Keep visiting CollegeDekho for the latest Education News on entrance exams, board exams and admissions. You can also write to us at our email ID news@collegedekho.com.