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DOUBT CRUX
เข้าร่วมเมื่อ 5 ก.ค. 2024
This channel main motive is to clearing the doubts of millions of IIT JEE/NEET Aspirants such that they go in top institutions.
The electric field at the point associated with a light wave is given by E = 200 [sin(6 × 1015) + s
The electric field at the point associated with a light wave is given by E = 200 [sin(6 × 1015) t + sin(9 × 1015) t] Vm-1 Given : h = 4.14 × 10-15 eVs If this light falls on a metal surface having a work function of 2.50 ev, the maximum kinetic energy of the photoelectrons will be (A) 1.90 eV (B) 3.27 eV (C) 3.60 eV (D) 3.42 eV
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มุมมอง: 13
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A 1 m long wire is broken into two unequal parts X and Y The X part of the wire is streched into ano
มุมมอง 6183 หลายเดือนก่อน
A 1 m long wire is broken into two unequal parts X and Y The X part of the wire is streched into another wire W. Length of W is twice the length of X and the resistance of W is twice that of Y. Find the ratio of length of X and t.me/ GFvM4ah0w0g2NGI1 Telegram link - #jee #jeedoubts #jeeadvanced #jeemains #jee2024 #jee2025preparation #jeecrux #jeemains #jeedoubts #pw #pw_motivation #pwians #pwmo...
Don't underestimate the power of single step 🪜🪜🔥🔥
มุมมอง 1223 หลายเดือนก่อน
#jeemotivation #jee #jeeresults #jeemains #jeemainsolutions #jeemains2023 #jeemain2024 #jeemain2025 #jeemain2023 #jeemain2026 #motivation #motuvational #motivationalshort #motivationalspeech #motivation #jeeshortnotes #jeeshorts #pw #pwmotivation #pwians #pwmotivational #pwian #pwians #pwmotivation #pwmotivationwallah Telegram link -t.me/ GFvM4ah0w0g2NGI1
Two trains ‘A’ and ‘B’ of length ‘l’ and ‘4l’ are travelling into a tunnel of length ‘L’ in paralle
มุมมอง 5794 หลายเดือนก่อน
Two trains ‘A’ and ‘B’ of length ‘l’ and ‘4l’ are travelling into a tunnel of length ‘L’ in parallel tracks from opposite directions with velocities 108 km/h and 72 km/h, respectively. If train ‘A’ takes 35s less time than train ‘B’ to cross the tunnel then, length ‘L’ of tunnel Telegram link - t.me/ GFvM4ah0w0g2NGI1 #jee #jeecrux #doubtcrux #jeedoubts #jeemainphysics #jeemain #jee2024 #jeemain...
A helicopter rises from rest on the ground vertically upwards with a constant acceleration g. A food
มุมมอง 654 หลายเดือนก่อน
A helicopter rises from rest on the ground vertically upwards with a constant acceleration g. A food packet is dropped from the helicopter when it is at a height h. The time taken by the packet to reach the ground is close to Telegram link -t.me/ GFvM4ah0w0g2NGI1 #jee #jeedoubts #jeeadvanced #jeemains #jee2024 #jee2025preparation #pwshorts #jeecrux #doubtcrux #iitjeedoubtnut #iitjee #iitjeeprep...
A point moves with uniform acceleration and its initial speed and final speed are 1 m/s and 2 m/s
มุมมอง 404 หลายเดือนก่อน
A point moves with uniform acceleration and its initial speed and final speed are 1 m/s and 2 m/s respectively then the space average velocity over the distance moved is ? Telegram link-t.me/ GFvM4ah0w0g2NGI1 #jee #jeedoubts #jeeadvance #jee2025preparation #jee2026 #jee #jeedoubts #pw #pw_motivation #jee2024 #jeemains
A particle is projected from the ground at some angle to the horizontal. (Assuming point of projecti
มุมมอง 1614 หลายเดือนก่อน
A particle is projected from the ground at some angle to the horizontal. (Assuming point of projection to be the origin and the horizontal and vertical directions to be the x & y-axis) the particle passes through the points (3,4) and (4,3) during its motion then the range of the particle would be: Telegram link-t.me/ GFvM4ah0w0g2NGI1 #projectilemotion #jeeproblems #jeeproblems #jeeadvanced #adv...
A long insulated copper wire is closely wound as a spiral of N turns. The spiral has inner radius a
มุมมอง 2494 หลายเดือนก่อน
A long insulated copper wire is closely wound as a spiral of N turns. The spiral has inner radius a and outer radius b. The spiral lies in the X-Y plane and a steady current I flows through the wire. The Zcomponent of the magnetic field at the center of the Telegram link-t.me/ GFvM4ah0w0g2NGI1 #jee #jeemainphysics #jeemains #jeemain2024 #jee2025 #jee2026 #jeemains2024 #jeedoubts #physics #doubt...
A wire of resistance R1 is drawn out so that its length is increased by twice of its original length
มุมมอง 3174 หลายเดือนก่อน
A wire of resistance R1 is drawn out so that its length is increased by twice of its original length. The ratio of new resistance to original resistance is Telegram link -t.me/ GFvM4ah0w0g2NGI1 #jeemainphysics #jeedoubts #jeephysics #jee #jeeadvanced #jeemain #iitjee #iitjeemains #iitjeeprepration #iitbombay #iitdelhi #iitmotivationstatus #iitjeepreparation
The charge flowing in a conductor changes with time as Q(t) = αt - βt2 + γt3. Where α,β, and γ are c
มุมมอง 1114 หลายเดือนก่อน
The charge flowing in a conductor changes with time as Q(t) = αt - βt2 γt3. Where α,β, and γ are constants. Minimum value of current is Telegram link -t.me/ GFvM4ah0w0g2NGI1 Read more #jeemainphysics #jeephysics #jeedoubts #doubtcrux #doubtnutphysics #jee2025preparation #jee2025 #jee advanced #jeemains #jeeadvancedphysics #jeemain #pw #jeewallah #jeeplanet #jee
Find the time after which the final velocity of a projectile become perpendicular to its initial vel
มุมมอง 1394 หลายเดือนก่อน
Find the time after which the final velocity of a projectile become perpendicular to its initial velocity Telegram link- t.me/ GFvM4ah0w0g2NGI1 #jeemainphysics #jeedoubts #jeemainphysics #jeemain2024 #jeemains #jeeadvanced #jeeplife #jeemotivation #jeepreparation #jee2025preparation #jee2025 #doubtcrux #jeecrux @JEECRUX-hz1de
A particle moves in the xy-plane with constant acceleration a directed along the negative y-axis .Th
มุมมอง 464 หลายเดือนก่อน
Q A particle moves in the xy-plane with constant acceleration a directed along the negative y-axis. The equation of path of the particle has the form y=bx-cx², where b and c are positive constants. The velocity v of the particle at the origin of coordinates will be Telegram link-t.me/ GFvM4ah0w0g2NGI1 #jeemainphysics #jeedoubts #jeephysics #jee #jeemains #jee advanced #jeedoubts #pw #pw_motivat...
A point moves rectilinearly with deceleration which depends on the velocity v of the particle a=k√v,
มุมมอง 424 หลายเดือนก่อน
A point moves rectilinearly with deceleration which depends on the velocity v of the particle as a=k√v, where k is a positive constant. At the initial moment the velocity of the point is equal to v0. What distance after it stops and total time of motion. #jeemainphysics #jeemainphysics #jeephysics #jeemain #jee #jeeadvanced #jee2025preparation #jee2025 #jeeadvanced #jeedoubts #jee2024 #pw #pw_m...
Equivalent resistance between the adjacent corners of a regular n-sided polygon of uniform wire of r
มุมมอง 1854 หลายเดือนก่อน
Equivalent resistance between the adjacent corners of a regular n-sided polygon of uniform wire of resistance R would be Telegram link - t.me/ GFvM4ah0w0g2NGI1 #jeedoubts #jeemainphysics #jee #jeeadvanced #jeeplife #jeemain2024 #jee2025preparation #electricalengineering
A wire of resistance 12 ohms per meter is bent to form a complete circle of radius 10 cm. The resist
มุมมอง 514 หลายเดือนก่อน
A wire of resistance 12 ohms per meter is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite points, A and B as shown in the Figure, is: Telegram link- t.me/ GFvM4ah0w0g2NGI1 #jeemainphysics #jee #jeemain #jeemains #jeeadvanced #jeedoubts #jeecrux #doubtcrux #equivalentresistance #pw #pw_motivation #pwmotivation #pwians #pw_talks #kota
The V-I graph for a conductor at temperature T1 and T2 are as shown in the fig. The term (T2−T1) is
มุมมอง 804 หลายเดือนก่อน
The V-I graph for a conductor at temperature T1 and T2 are as shown in the fig. The term (T2−T1) is
Figure shows a part of an electric circuit.The potentials at the points a,b and c are 30V,12V,and 2V
มุมมอง 754 หลายเดือนก่อน
Figure shows a part of an electric circuit.The potentials at the points a,b and c are 30V,12V,and 2V
In the following circuit, the current through the resistor R(=2Ω) is I Amperes. The value of I is
มุมมอง 834 หลายเดือนก่อน
In the following circuit, the current through the resistor R(=2Ω) is I Amperes. The value of I is
A helicopter is flying horizontally with a speed 'v' at an altitude 'h' has to drop a food packet
มุมมอง 1224 หลายเดือนก่อน
A helicopter is flying horizontally with a speed 'v' at an altitude 'h' has to drop a food packet
A body is thrown vertically upward from the top A of tower. It reaches the ground in t1 s. If it is
มุมมอง 784 หลายเดือนก่อน
A body is thrown vertically upward from the top A of tower. It reaches the ground in t1 s. If it is
A rocket is moving in a gravity-free space with a constant acceleration of 2 ms−2 along+x direction
มุมมอง 1794 หลายเดือนก่อน
A rocket is moving in a gravity-free space with a constant acceleration of 2 ms−2 along x direction
In the following circuit, the battery has an emf of 2 V and an internal resistance of 2/3ohm
มุมมอง 914 หลายเดือนก่อน
In the following circuit, the battery has an emf of 2 V and an internal resistance of 2/3ohm
A network of four resistances is connected to 9V battery, as shown in figure. The magnitude of
มุมมอง 965 หลายเดือนก่อน
A network of four resistances is connected to 9V battery, as shown in figure. The magnitude of
The equivalent resistance between A and B is
มุมมอง 545 หลายเดือนก่อน
The equivalent resistance between A and B is
In the given circuit diagram, a wire is joining points B and D. The current in this wire is
มุมมอง 1065 หลายเดือนก่อน
In the given circuit diagram, a wire is joining points B and D. The current in this wire is
In the circuit shown, each resistor is of resistance R the equivalent resistance between terminal
มุมมอง 485 หลายเดือนก่อน
In the circuit shown, each resistor is of resistance R the equivalent resistance between terminal
A network of four resistances is connected to 9 V battery, as shown in figure. The magnitude of volt
มุมมอง 1355 หลายเดือนก่อน
A network of four resistances is connected to 9 V battery, as shown in figure. The magnitude of volt
the average velocity of the ball up to the point when it hits the ground for the first time is 𝑉1
มุมมอง 685 หลายเดือนก่อน
the average velocity of the ball up to the point when it hits the ground for the first time is 𝑉1
Two electrons each are fixed at a distance '2d'. A third charge proton placed at the midpoint is
มุมมอง 2605 หลายเดือนก่อน
Two electrons each are fixed at a distance '2d'. A third charge proton placed at the midpoint is
The energy of a system as a function of time t is given as E(t)=A2exp(−αt), α=0.2s−1
มุมมอง 2485 หลายเดือนก่อน
The energy of a system as a function of time t is given as E(t)=A2exp(−αt), α=0.2s−1
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great explanation sir
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Nice explanation.
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Great explanation sir 😊😊
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I was confused about this answer thanks
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@@DoubtCrux ok
During a relief campaign a helicopter drops food packet to the people in need. If food packet gets spoiled if its speed of hitting the ground is more than 40 m/s, then what must be the maximum height maintained by helicopter moving horizontally with 10m/s so to successfully drop food packet during campaign. Sir please solve it
During a relief campaign a helicopter drops food packet to the people in need. If food packet gets spoiled if its speed of hitting the ground is more than 40 m/s, then what must be the maximum height maintained by helicopter moving horizontally with 10m/s so to successfully drop food packet during campaign.
Thank you sir but I have problem in question below please solve it During a relief campaign a helicopter drops food packet to the people in need. If food packet gets spoiled if its speed of hitting the ground is more than 40 m/s, then what must be the maximum height maintained by helicopter moving horizontally with 10m/s so to successfully drop food packet during campaign. During a relief campaign a helicopter drops food packet to the people in need. If food packet gets spoiled if its speed of hitting the ground is more than 40 m/s, then what must be the maximum height maintained by helicopter moving horizontally with 10m/s so to successfully drop food packet during campaign.
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Thanks
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Nice explanation 👏🏻
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Good 👍
In some places answer is given 8 sec and somewhere 2sec both are right & both are acceptable by NTA at that time so don't get confused
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Wrong ans bro.. Ans: 2sec
@@CHINMOYgalaxyON Bro both answer is accepted by NTA at that time
@@DoubtCrux thnx for giving me this information.
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Very nicely explained sir! ✨
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