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Vivek Singh

Vivek Singh

HOD Physics @ Unacademy Bhilai

Former Director β€” Vibrant Academy | Former Faculty β€” Aakash Institute
In his free time, he provides career counseling on Dial Me 24/7

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JEE Mains NEET UG CBSE Class 11 CBSE Class 12 NCERT DC Pandey SL Arora
JEE MAIN 2025(29jan shift2):A point charge causes an electric flux of –2 Γ— 104 Nm2C–1 to pass throug

JEE MAIN 2025(29jan shift2):A point charge causes an electric flux of –2 Γ— 104 Nm2C–1 to pass throug

March 5, 2025

Description A point charge causes an electric flux of –2 Γ— 104 Nm2C–1 to pass through a spherical Gaussian surface of 8.0 cm radius, centred on the charge. The value of the point charge is : (Given Ξ΅0 = 8.85 Γ— 10–12C2N–1m–2) (1) –17.7 Γ— 10–8C. 2) -15.7 Γ— 10–8C (3) 17.7 Γ— 10–8C 4)

JEE MAIN 2025,29jan shift 2(By graph and short trick): In an experiment with photoelectric effect, t

JEE MAIN 2025,29jan shift 2(By graph and short trick): In an experiment with photoelectric effect, t

March 5, 2025

Description In an experiment with photoelectric effect, the stopping potential. (1) increases with increase in the wavelength of the incident light (2) increases with increase in the intensity of the incident (3) is 1/e times the maximum kinetic energy of the emitted photoelectrons (4) decreases with increase in the intensity of the incident light Welcome

JEE MAIN 2025,29jan shift 2 :An electric dipole is placed at a distance of 2 cm from an infinite pla

March 5, 2025

Description An electric dipole is placed at a distance of 2 cm from an infinite plane sheet having positive charge density Οƒ0. Choose the correct option from the following. (1) Torque on dipole is zero and net force is directed away from the sheet. (2) Torque on dipole is zero and net force acts towards

JEE MAIN 2025,29jan shift 2 :An electric dipole is placed at a distance of 2 cm from an infinite pla

JEE MAIN 2025,29jan shift 2 :An electric dipole is placed at a distance of 2 cm from an infinite pla

March 5, 2025

Description An electric dipole is placed at a distance of 2 cm from an infinite plane sheet having positive charge density Οƒ0. Choose the correct option from the following. (1) Torque on dipole is zero and net force is directed away from the sheet. (2) Torque on dipole is zero and net force acts towards

JEE MAIN 29jan shift 2:The difference of temperature in a material can convert heat energy into elec

JEE MAIN 29jan shift 2:The difference of temperature in a material can convert heat energy into elec

March 5, 2025

Description The difference of temperature in a material can convert heat energy into electrical energy. To harvest the heat energy, the material should have (1) low thermal conductivity and low electrical conductivity (2) high thermal conductivity and high electrical conductivity (3) low thermal conductivity and high electrical conductivity (4) high thermal conductivity and low electrical

JEE MAIN 28jan shift 2:A thin transparent film with refractive index 1.4, is held on circular ring o

JEE MAIN 28jan shift 2:A thin transparent film with refractive index 1.4, is held on circular ring o

March 5, 2025

Description A thin transparent film with refractive index 1.4, is held on circular ring of radius 1.8 cm. The fluid in the film evaporates such that transmission through the film at wavelength 560 nm goes to a minimum every 12 seconds. Assuming that the film is flat on its two sides, the rate of evaporation

NEET 2023:12 V, 60 W lamp is connected to the secondary of a step-down transformer, whose primary is

NEET 2023:12 V, 60 W lamp is connected to the secondary of a step-down transformer, whose primary is

March 3, 2025

Description ***NEET 2023 paper discussion playlist**πŸ€˜πŸ»πŸ˜ƒ ****NEET 2024 solution playlist***πŸ˜ƒπŸ€— ***All NEET PYQs playlist***πŸ˜ƒπŸ€˜πŸ» ***All JEE Main/AIEEE questions playlist***πŸ˜ƒπŸ€˜πŸ» βœ…βœ…βœ…πŸ˜ƒYou can also find for chapterwise playlist of JEE MAIN and NEET on the channelπŸ‘πŸ»πŸ‘πŸ»βœ…βœ…βœ… #physicsmonk,#neet,#pyq,#importantquestions,#neetpapersolution,#jeemain2025,#jeemain,#neet2023,#aiims A 12 V, 60 W lamp is connected to the secondary of a step-down transformer, whose primary is connected to

NEET2023:A very long conducting wire is bent in a semi-circular shape from A to B as shown in f

NEET2023:A very long conducting wire is bent in a semi-circular shape from A to B as shown in f

March 3, 2025

Description ***NEET 2023 paper discussion playlist**πŸ€˜πŸ»πŸ˜ƒ ****NEET 2024 solution playlist***πŸ˜ƒπŸ€— ***All NEET PYQs playlist***πŸ˜ƒπŸ€˜πŸ» ***All JEE Main/AIEEE questions playlist***πŸ˜ƒπŸ€˜πŸ» βœ…βœ…βœ…πŸ˜ƒYou can also find for chapterwise playlist of JEE MAIN and NEET on the channelπŸ‘πŸ»πŸ‘πŸ»βœ…βœ…βœ… #physicsmonk,#neet,#pyq,#importantquestions,#neetpapersolution,#jeemain2025,#jeemain,#neet2023,#aiims A very long conducting wire is bent in a semi-circular shape from A to B as shown in figure. The

NEET 2023:The resistance of platinum wire at 0Β°C is 2 and 6.8 at 80Β°C. The temperature coefficient o

NEET 2023:The resistance of platinum wire at 0Β°C is 2 and 6.8 at 80Β°C. The temperature coefficient o

March 3, 2025

Description ***NEET 2023 paper discussion playlist**πŸ€˜πŸ»πŸ˜ƒ ****NEET 2024 solution playlist***πŸ˜ƒπŸ€— ***All NEET PYQs playlist***πŸ˜ƒπŸ€˜πŸ» ***All JEE Main/AIEEE questions playlist***πŸ˜ƒπŸ€˜πŸ» βœ…βœ…βœ…πŸ˜ƒYou can also find for chapterwise playlist of JEE MAIN and NEET on the channelπŸ‘πŸ»πŸ‘πŸ»βœ…βœ…βœ… #physicsmonk,#neet,#pyq,#importantquestions,#neetpapersolution,#jeemain2025,#jeemain,#neet2023,#aiims The resistance of platinum wire at 0Β°C is 2 ohm and 6.8 ohm at 80Β°C. The temperature coefficient of resistance

NEET2023:The radius of inner most orbit of hydrogen atom is 5.3 Γ— 10–11 m. What is the radius of thi

NEET2023:The radius of inner most orbit of hydrogen atom is 5.3 Γ— 10–11 m. What is the radius of thi

March 3, 2025

Description ***NEET 2023 paper discussion playlist**πŸ€˜πŸ»πŸ˜ƒ ****NEET 2024 solution playlist***πŸ˜ƒπŸ€— ***All NEET PYQs playlist***πŸ˜ƒπŸ€˜πŸ» ***All JEE Main/AIEEE questions playlist***πŸ˜ƒπŸ€˜πŸ» βœ…βœ…βœ…πŸ˜ƒYou can also find for chapterwise playlist of JEE MAIN and NEET on the channelπŸ‘πŸ»πŸ‘πŸ»βœ…βœ…βœ… #physicsmonk,#neet,#pyq,#importantquestions,#neetpapersolution,#jeemain2025,#jeemain,#neet2023,#aiims The radius of inner most orbit of hydrogen atom is 5.3 Γ— 10–11 m. What is the radius of third

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