On 5 January 2020, more than 50 masked people armed with rods, sticks and acid attacked the campus of Jawaharlal Nehru University, Delhi, and injured more than 39 students and teachers. Many students received serious injuries. Professors who tried to intervene and protect the students, as well as ambulances carrying injured individuals, were attacked. Eyewitnesses stated that police within the campus did not intervene to stop the mob. After attacking residents of the university campus for three hours, the mob escaped; none of its members was arrested or detained. All 36 students who were injured and admitted to the All India Institute of Medical Sciences, New Delhi (AIIMS) were discharged within 24 hours.Eyewitnesses, including students injured in the attack, as well as opposition parties and left-wing organizations, accused the members of the Bharatiya Janata Party's (BJP) student wing, Akhil Bharatiya Vidyarthi Parishad (ABVP) of orchestrating the attacks. The ABVP, a Hindu nationalist organization, initially denied any involvement and accused left-wing organisations of carrying out the attack. On 6 January, ABVP's joint secretary for Delhi, Anima Sonkar, admitted on television that two armed men seen in videos of the incident were members of ABVP. Although any one clear motive has not emerged, the attack has been described by some as a way to prevent students from raising their voice against a fee hike and the Citizenship Amendment Act.Police have said that three of the masked attackers have been identified but no arrests have been made, and complaints have been filed as a single FIR (First Information Report) on unknown people. On 15 January, police confirmed the identification of the masked woman, seen in the video recording of the attack, as a member of ABVP. Police have issued a notice to the woman and two other men. According to police all three have switched their phones off and are yet to be located. As of 31 January, 26 days after the attack, the Delhi Police have not arrested any suspects in the attack.
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Dimension of length using h,G,c
[h] = [F r]
##[G] =[ \frac { Fr^2}{m^2} ]
\\ [\frac { hG}c] = [L] ##
So, the answer is option (b).
Is this correct?
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The energy eigen - value of a particle in a box is given by ## E_n = \frac { n^2 h^2}{8mL^2} ## .
Now, applying classical mechanics , ## \frac { p^2}{2m} = \frac { n^2 h^2}{8mL^2} ## .
## p \propto \frac { 1} L ## ,
So...
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Both electrons are in 1s orbit.
For taking out the second electron, I will have to put slightly more energy than 24.6eV.
So, the energy required to remove both electrons should be slightly more than 49.2 eV.
So, I...
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Homework EquationsThe Attempt at a Solution [/B] De – Broglie wavelength of ## O_2 ## molecule is ## \lambda = \frac h p ##
Assuming that the speed of molecule is small enough to take non – relativistic calculation,
## \frac {...
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[/B]Assuming that the relation ## v = \omega r ## is valid in relativistic calculation.
As the speed is greater for higher kinetic energy, ## \omega_2 ## is greater.
This is shown by only (d). So, I think (d) should...
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## \frac 1 2 m<v_x^2> =\frac 1 2 k_BT ,
\\ \sqrt{ <v_x^2>} = 556~ m/s ## So, I guess that the standard deviation should be less than rms speed.
So, the option is (a)
## \left< ax + b \right> = a\left<x\right> + b...
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Output voltage and output current of an OP-Amp
Taking the OP-Amp as an ideal OP-Amp, the voltage at terminal 1 is 0 with respect to ground.
The voltage at B is ## V_B = - 0.5 V ##
## i_{in} ## is from A to B.
There is...
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Homework EquationsThe Attempt at a SolutionThe emf gets induced due to the changing flux.
The flux through the rod remains 0. So, there is no induced emf.
I don’t know how to calculate induced electric field.
But as there is no induced emf, so there is no induced...
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LCR circuit, calculating R when frequency width is given
Applying Kirchoff Voltage Loop Law,
## V_A – V_B + V_B - V_C + V_C – V_A = 0 ## ...(2)
## V_A – V_B ## is potential drop across inductor. Since current is flowing...
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Homework EquationsThe Attempt at a SolutionMagnetic field due to both semi - infinite straight wires on P = Magnetic field due to infinite straight wire on P = ## \frac { \mu_0 I } { 2 \pi a } = 2 * 10 ^{-5} ~wb/m^2 ##
Magnetic field due to semi – circular wire on...
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Option (a), because the potential is 0 on the surface, and potential due to point charge is positive so there must be negative charge on the surface. Since opposite charges attract each other, there is an attractive force...
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When the source is not moving, ## \lambda = 6250 A ## ...(1)
When the source is moving, ## \lambda ' = 6500 A ## ...(2)
From (1) and (2),
## \lambda ' > \lambda ## ...(3)
This means that the source is moving away from...
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## v = \frac { \omega } k ##
## \omega = \sqrt{ kg \tanh (k) } ##I have no idea to guess the graph.
I put g = 9.8 and tried to calculate ## \omega ## for different values of k.
## \omega (0 ) = 0,
\omega (30) =...
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When the system is in air
## d \sin {\theta} = n \lambda ## ...(1)
When the system is in water and slit separation is 2d,
## \mu 2d \sin {\theta} = n \lambda ## ...(2)
## \tan {\theta} = \frac y D ## ...( 3)...
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Det( ## e^A ## ) = ## e^{(trace A)} ##
## trace(A) = trace( SAS^{-1}) = 0 ## as trace is similiarity invariant.
Det( ## e^A ## ) = 1
The answer is option (a).
Is this correct?
But in the question, it is not...
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I think : the question means that almost all of the potential energy gets used into the explosion.
If this is true then the potential energy gets reduced by ## \frac { GM^2} R ## or if the star just gets transformed into a...
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total kinetic energy of a rigid body = rotational kinetic energy of the body around its center of mass + translational kinetic energy of center of mass
For solid cylinder, total kinetic energy = ## \frac { [I = \frac 1 2...