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GUJCET Physics Answer Key 2024 UnofficialGUJCET Physics Answer Key 2024 Unofficial: Gujarat Board of Secondary Education conducted the GUJCET 2024 Physics exam on March 31 from 10 AM to 12 PM as a combined paper with the Chemistry subject. As per the exam pattern, the physics section consisted of 40 questions for 40 marks with a negative marking of 0.25 marks for each wrong attempt. As the official GUJCET answer key 2024 is likely to be out by April 10, the candidates can meanwhile check the unofficial GUJCET Physics answer key 2024 here to estimate their tentative performance. GUJCET result expected release date 2024 is the last week of April. The answer keys for GUJCET Physics 2024 for question paper set 1 to 20 - Gujarati and English medium can be checked here.
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GUJCET Physics Answer Key 2024 (All Sets Answers)
Until the board releases the official answer key, students shall refer to and download the GUJCET Physics Answer Key 2024 unofficial here and accordingly analyse their performances. Do note that as the questions across all 20 sets are the same with only the question and option orders shuffled, all questions and answers are directly provided here. You may cross-check the questions and answers with your question paper to estimate your score. The following questions are provided in no particular sequence corresponding to the sets.
| Sr. No. | Question | Answer |
|---|---|---|
| 1 | A parallel plate capacitor with ar between the plates has a capacitance of 4 pF If the distance between the plates is reduced by half and the space between them is filled with a substance of dielectric constant 6 un the value of capacitance will be | 48 pF |
| 2 | The SI unit of the current density is ______. | Am-2 |
| 3 | The magnitude of the drift velocity per unit electric field is known as _________. | Mobility |
| 4 | As shown in the circuit diagram find the value of I ___________. | 2.5 A |
| 5 | A silver wire has a resistance of 2 152 27,5°C and a resistance of 270 at 100°C Then the temperature coefficient of resistivity of silver will be _________. | 3.9 x 10-3 °C-1 |
| 6 | Vs/Am is the unit of which physical quantity? | µ0 |
| 7 | An ideal ammeter and an ideal voltmeter has resistance ________ Ω and ________ Ω respectively | (0, ∞) |
| 8 | A solenoid has a core of a material with relative permeability 400. The windings of the solenoid are insulated from the core and carry a current of 2A. If the number of turns is 1000 per meter then the value of magnetic intensity will be _________. | 8 x 105 Am-1 |
| 9 | A short bar magnet placed with its axis at 30° with a uniform external magneticfield of 0.5T experiences a torque of magnitude equal to 4.5 x 10-2 J Then the magnitude of magnetic moment of the magnet will be _________. | 36 x 10-2 JT-1 |
| 10 | A square loop of side 10 cm and resistance 0.5 Ω is placed vertically in the cast-west plane. A uniform magnetic field of 0.10 T is setup cross the plane in the north-east direction. The magnetic field is decreased to zero in 0.70 S at a steady rate. Then the magnitude of induced current during this time interval will be _________. | 2.0 x 10-3 A |
| 11 | A coil has N turns and current passes through it is I ampere then we obtain L Henry of self inductance. Now if current charge to 51 then new self inductance will be _________ H. | L |
| 12 | Arure inductor of 50.0 mH is connected to a source of 220 V. Then rms current in the circuit will be _________. The frequency of the source is 50Hz. | 14 A |
| 13 | In LCR series a. c. circuit at resonance the value of power factor will be __________. | 1 |
| 14 | If the primary coil of a transformer has 100 turns and the secondary has 200 turns. Then for a input of 220 V at 10 A find output current, in step up transformer. | 0.5 A |
| 15 | For obtaining wattless current ________ is connected with a.c. supply. | Only L |
| 16 | As indicated below which one is the equation of Ampere-Maxwell law? | ∮B·dl = µ0ic + µ0ε0 dΦB/dt |
| 17 | Cellular phones use radio waves to transmit voice communication in the _________ band. | UHF |
| 18 | Tor plane mirror focal length is __________ m. | ∞ |
| 19 | A rays coming from an object which is situated at o distance in air and falls on a spherical glass surface (n=1.5) Then the distance of image will be _____________. R is the radius of curvature of a spherical glass. | 3R |
| 20 | For a thin prism, the angle of prism is 4º having refractive index 1.6, then the angle of minimum deviation will be ________. | 2.4° |
| 21 | Consider a refracting telescope whose objective has a focal length of Im and the eyepiece a focal length of 1cm, then magnifying power of this telescope will be ___________. | 100 |
| 22 | The phase difference between any two particle of a given wave front is ________ rad. | 0 |
| 23 | In a Young's double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1,4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 12 cm Then the wavelength of light used in the experiment is __________. | 600 nm |
| 24 | The refractive index of glass is 1.6 then the speed of light in glass will bespeed of light in vacuum is 3.0 x 108 ms-1. | 1.88 x 108 m/s |
| 25 | Js is the unit of _________ physical quantity. | Angular Momentum |
| 26 | To emit an electron from the metal, minimum electric field required is ________. | 108 Vm-1 |
| 27 | A ball of mass 0.12 kg moving with a speed of 20 ms-1 has de-Broglie wavelength ________. (h = 6.63 x 10-34 Js) | 2.76 x 10-34 m |
| 28 | The ratio of radius for second and third orbit of hydrogen atom is __________. | 4 : 9 |
| 29 | In Geiger-Marsden scattering experiment the thickness of a thin foil of gold is _________ m. | 2.1 x 10-7 |
| 30 | The ground state energy of hydrogen atom is-13.6 eV, then the potential energy of the electron in this state will be _________. | -27.2 eV |
| 31 | Some stomic species of the same element differing in mass are called __________. | Isotope |
| 32 | Find the value of x and y from below given nuclear reaction 23592U + 10n → 133xSb + y41Nb + 4 10n | (51, 99) |
| 33 | The ratio of the nuclear radii of the 11H and 2713Al is _________. | 1 : 3 |
| 34 | Which impurity is used to convert pure semiconductor into p-type semiconductor? | Indium |
| 35 | The energy required for electron to jump the forbidden band for germanium at room temperature in the intrinsic semiconductor is _________ eV. | 0.72 |
| 36 | The Dimensional formula for Electric Flux is _________. | [ M1L3T-3A-1 ] |
| 37 | For an electric dipole an angle between overline B and overline P at a point on the equatorial plane is _________. | 180° |
| 38 | An infinite line charge produces an electric field of 9 * 10 ^ 4 * N / C at a distance of 2cm. Then the linear charge density will be _________. (K = 9 x 109 Nm2/C2) | 0.1 µC/m |
| 39 | If an electron is accelerated by a potential difference of 2.5V it would gain energy of __________. (Take charge of electron 1 x 10-19 C ) | 2.5 eV |
| 40 | A radius of spherical charged shell is 10 cm and electric potential on its surface is 100 V, then the potential at 2 cm from the centre of the shell will be _________. | 0 V |
Along with the answer key, students shall check their marks. As per the marking scheme, all correct answers will be awarded 1 mark and each wrong answer will deduct 0.25 marks. So, candidates shall calculate their marks accordingly. The expected number of good attempts in GUJCET 2024 Physics can be around 30 considering the difficulty level of the question paper.
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