Welcome to PhysicsMonk.com – the most trusted Physics doubt solving platform for IIT-JEE, NEET, and CBSE students.
Vivek Singh
HOD Physics @ Unacademy Bhilai
Former Director — Vibrant Academy | Former Faculty — Aakash Institute
In his free time, he provides career counseling on Dial Me 24/7
Hi, this is Vivek Singh. I help NEET and IIT-JEE aspirants do the one thing that matters most: get selected.
If your focus keeps slipping, your marks aren’t moving, or you’re studying hard with zero results—I’ll tell you exactly what’s breaking your preparation and how to fix it fast.
My priority is simple: Turn your preparation into a selection.
From routine, discipline and strategy to exam temperament—I break down everything toppers get right and average students miss.
Once the rank comes, I guide you on which branch to pick, which college to trust, and how to lock a path that gives long-term success.
If things don’t go as planned, I help you make smart next moves without wasting a year or losing confidence.
If you want sharp guidance, honest feedback, and a push that converts effort into results — I’m here for you.
Get Clear Physics Solutions — Fast
Stuck in Physics? Confused between DC Pandey, SL Arora or NCERT?
PhysicsMonk gives fast, accurate doubt-solutions for
IIT-JEE & NEET Physics — no YouTube overload, no confusion.
Browse solutions by chapter, book or exam level.
There is a uniform spherically symmetric surface charge density at a distance R0 from the origin – Physics IIT-JEE Question
January 4, 2025
Description There is a uniform spherically symmetric surface charge density at a distance R0 from the origin. The charge distribution is initially at rest and starts expanding because of mutual repulsion. The figure that represents best the sped V(R(t)) of the distribution as a function of its instantaneous radius R(t) is Frequently Asked Questions How
A thin strip 10 cm long is on a U shaped wire of negligible resistance and it is connected to a spring of spring constant 0.5 Nm–1com/watch? – Mechanics, Electromagnetism IIT-JEE Question
January 1, 2025
Description A thin strip 10 cm long is on a U shaped wire of negligible resistance and it is connected to a spring of spring constant 0.5 Nm–1 (see figure). The assembly is kept in a uniform magnetic field of 0.1 T. If the strip is pulled from its equilibrium position and released, the number
2xay T, find the power required to move the conductor at constant s…
December 30, 2024
Description A conductor lies along the z-axis at -1.5≤z to 1.5m and carries a fixed current cf 10.0A in -az. direction (see figure). For a field B=3.0x 10-4 e-0.2xay T, find the power required to move the conductor at constant speed to x =2.0 m, y =-0 in 5x 10-3 s. Assume parallel motion along
A compound microscope consists of an objective lens of focal length 1 cm and an eyepiece of focal length 5 cm with a separation of 10 cm- Optics IIT-JEE Question
December 29, 2024
Description A compound microscope consists of an objective lens of focal length 1 cm and an eyepiece of focal length 5 cm with a separation of 10 cm. The distance between an object and the objective lens, at which the strain on the eye is minimum is n 40 cm. The value of n is
For a concave lens of focal length f, the relation between object and image distances u and v, respectively, from its pole can best be represente by – Optics IIT-JEE Question
December 29, 2024
Description For a concave lens of focal length f, the relation between object and image distances u and v, respectively, from its pole can best be represente by (u = v is the reference line) Frequently Asked Questions How to prepare for IIT-JEE Physics? To prepare for IIT-JEE Physics, focus on understanding concepts rather than
The total charge enclosed in an incremental volume ofIs 2*10^-9 m3located at the origin is
December 23, 2024
Description The total charge enclosed in an incremental volume of Is 2*10^-9 m3 located at the origin is …….nC , if electric flux density of its field is found as Frequently Asked Questions How to prepare for IIT-JEE Physics? To prepare for IIT-JEE Physics, focus on understanding concepts rather than memorizing formulas. Practice solving a
The amplitude of wave disturbance propagating in the positive x-direction is given by y = 1 ( 1 + x ) 2 at time t =0 and y = 1 1 + ( x − 2 ) 2 at t = 1s- Waves Question
December 22, 2024
Description The amplitude of wave disturbance propagating in the positive x-direction is given by y = 1 ( 1 + x ) 2 at time t =0 and y = 1 1 + ( x − 2 ) 2 at t = 1s, where x and y are in meres. The shape of wave does
An electric appliance supplies 6000 J/min heat to the system. If the system delivers a power of 90W. How long it would take to increase the internal energy by 2.5 × 103 J – Mechanics, Thermodynamics Question
December 22, 2024
Description An electric appliance supplies 6000 J/min heat to the system. If the system delivers a power of 90W. How long it would take to increase the internal energy by 2.5 × 103 J ? Frequently Asked Questions How to prepare for IIT-JEE Physics? To prepare for IIT-JEE Physics, focus on understanding concepts rather than
A cell of emf 90 V is connected across series combination of two resistors each of 100Ω resistance. A voltmeter of resistance 400Ω is used to measure the potential difference across each resistor. – Electromagnetism IIT-JEE Question
December 22, 2024
Description A cell of emf 90 V is connected across series combination of two resistors each of 100Ω resistance. A voltmeter of resistance 400Ω is used to measure the potential difference across each resistor. The reading of the voltmeter will be Frequently Asked Questions How to prepare for IIT-JEE Physics? To prepare for IIT-JEE Physics,
Equivalent resistance between the adjacent corners of a regular n-sided polygon of uniform wire of resistance R would be- Physics Question
December 20, 2024
Description Equivalent resistance between the adjacent corners of a regular n-sided polygon of uniform wire of resistance R would be: Frequently Asked Questions How to prepare for IIT-JEE Physics? To prepare for IIT-JEE Physics, focus on understanding concepts rather than memorizing formulas. Practice solving a variety of problems, especially previous years’ questions. Create a study
“PhysicsMonk” by Mr. Vivek Singh Sir & team