AWES TGT Physics Mock Test - 10 - AWES TGT/PGT MCQ

Dhinidhi Desinghu achieved the 'Best India Time' in the girl's 100m Freestyle event at the 11th Asian Group Aquatics Championships in the Philippines. She set a new Indian record of 57.33 seconds, surpassing the previous record set by Kenisha Gupta.

The NEP 2020 emphasizes the need for a learner-centric pedagogy that focuses on the individual needs and interests of each learner. It calls for a shift away from traditional teacher-centric methods that focus on rote learning and memorization.

Key Points

The NEP 2020 recommends a number of pedagogies that are learner-centric, including:

• Active learning: Active learning is a type of learning in which students are actively engaged in the learning process. This can be done through activities such as discussion, problem-solving, and hands-on learning.
• Inquiry-based learning: Enquiry-based learning is a type of learning in which students are encouraged to ask questions and to explore their own understanding of a topic. This can be done through activities such as research, experimentation, and collaboration.
• Project-based learning: Project-based learning is a type of learning in which students work on a real-world problem or project. This can help students to apply their knowledge and skills in a meaningful way.
• Innovative pedagogy: Innovative pedagogy is a pedagogy that is constantly evolving and adapting to the needs of learners. It is based on the understanding that there is no one-size-fits-all approach to learning.

Hence, we can conclude that the National Education Policy (2020) recommends pedagogies that are learner-centric.

The behavioristic approach focuses on the mechanics of learning.

• Behaviorist approach is the study of cognitive development that is concerned with the basic mechanics of learning. Learning - changes in behavior because of experiences (excluding changes due to fatigue, injury, or drug effects), is at the center of this approach.
• The central tenet of behaviorism is that an organism learns behavioral adaptation, whose learning is governed by the principles of association (forming connections between ideas and events).
• Behaviorism stands apart from other approaches by its emphasis on the relationship between observable behavior (responses) and environmental events (stimuli).

Behaviorism or the behaviorist approach lays stress on the role of environmental stimuli in determining the way we act. Behaviorism is also referred to as behavioristic psychology.

National Education Policy 2020 is India’s First 21st Century Education Policy. Which makes many relevant changes in the education system from elementary education to Higher education.

Key PointsAccording to NEP 2020:

• ​A "5+3+3+4" curriculum framework is planned as part of the 2020 education reform.
• Based on age divisions, NEP 2020 has divided schooling into several phases.
• The policy prioritizes three years of preschool and twelve years of formal education.

Thus, classes 3rd to 5th are​ included in the preparatory stage as per the new education policy 2020

NEP 2020 recommends a multilingual approach, where students are taught in their mother tongue/local language plus one other language.

Education Policy lays particular emphasis on the development of the creative potential of each individual. It is based on the principle that education must develop not only cognitive capacities - both the ‘foundational capacities ’of literacy and numeracy and ‘higher-order’ cognitive capacities, such as critical thinking and problem solving – but also social, ethical, and emotional capacities and dispositions.

National Education Policy 2020-

According to NEP 2020, A good educational institution is one in which every student feels welcomed and cared for, where a safe and stimulating learning environment exists, where a wide range of learning experiences are offered, and where good physical infrastructure and appropriate resources conducive to learning are available to all students.

Key Points Some important fundamental principles of the NEP 2020 are- 

• Establishment of the linkage of the concepts with the environment or we can say that the linkage of the school with the home.
• It includes the overall development of the leader, it covers all three aspects as Cognitive domain, affective domain, and psychomotor domain.
• It will include Progress of the Child in Inquiry-Based Learning, Quiz, Projects Roleplay, Group Work, Portfolios, etc, as part of the assessment of the students.
• Promoting self-assessment and the peer assessment done by the student in the classroom.
• Making board examination low stake and less stressful by focusing on Logic and Core Competencies
• It emphasizes group work as well as individual work, NEP 2020 links the study to the curriculum.
• Hence we conclude that all the objectives given in the question are correct for the assessment of the student.

Important Points  There are many changes in the assessment of the child, proposed in NEP 2020:

• Continuous Tracking Of Learning Outcome Of Each Child.
• Board Examinations to be made more flexible with an assessment of essential skills.
• Assessment to focus on core concepts, higher-order, and foundational skills 
• AI-based soft wares to help track the progress of students to enable them to make optimal career choices.
• National Assessment Centre (PARAKH) will bring greater synergy to board examinations.
• Self Assessment & Peer Assessment.
• National Testing Agency (NTA) will work to offer a Common Aptitude Test of high quality to eliminate the need for coaching for these exams. 

• Globalization of Education is the integration and application of similar education systems and knowledge throughout the world across borders, improving the quality & deployment of education worldwide.
• Globalization has also led to increasing multiculturalism in societies.
• Multiculturalism promotes change and inclusion in attitudes.
• Societies that promote cultural diversity are viewed as more global and open-minded than societies that promote monoculture.
• For instance, economies and societies which promote monoculture are not as progressive and globalized as societies that promote multiculturalism.
• Diversity not only allows different kinds of people to come together, but it also brings various functions into a city, consequently enhancing globalization. 

Therefore we can conclude that There is a dire need to promote diversity in educational institutions because of the globalization of education.

In series connection of cells total internal resistance=nr total resistance of circuit=nR current is same potential difference is different so,I=nv/nR+nr I=V/R+r current is same as before in parallel connection of cells total internal resistance=r/n total resistance of circuit=R/n total current=nI potential difference is same nI=V/r/n+R/n I=V/R+r current is same as before.

In Optics, the angle of incidence to which the angle of refraction is 90° is called the critical angle. The ratio of velocities of a light ray in the air to the given medium is a refractive index. Thus, the relation between the critical angle and refractive index can be established as the Critical angle is inversely proportional to the refractive index.
Critical Angle and Refractive Index
The relationship between critical angle and refractive index can be mathematically written as –
SinC=1/μ_a^b
μ_a^b =1/SinC
Where,
C is the critical angle.
μ is the refractive index of the medium.
a and b represent two mediums in which light ray travels.
 

The principle of reversibility of light states that light follows the same path if the direction of the travel of light is reversed.
The principle of reversibility presumes that the attenuation of a light ray during its passage through an optical medium because of reflection, refraction, and absorption is not affected by a reversal of the direction of the ray. In its simplest explanation, the principle of reversibility is a deduction of Snell’s law of the refraction of light. The principle of reversibility presumes that the attenuation of a light ray during its entrance through an optical medium due to reflection, refraction, and absorption is not changed by a reversal of the direction of the ray.

An oscillator is a circuit which produces a continuous, repeated, alternating waveform without any input. Oscillators basically convert unidirectional current flow from a DC source into an alternating waveform which is of the desired frequency, as decided by its circuit components.

If we fill the gap then there will be no electric field at the center of ring
This signifies that electric field due to rest ring is equal to electric field due to gap and opposite in direction
so electric field due to gap= Kq/R²​
q=Qd/2πR​
thus electric field E=KQd​/ R³
Hence E will be inversely proportional to R³  and direction will be toward the gap.
 

The restoring force in a simple harmonic motion is maximum in magnitude when the particle is instantaneously at rest because in SHM object’s tendency is to return to mean position and here particle is instantaneously at rest after that instant restoring force will be max to bring particle to mean position.

The stick is balanced by the 1 kg rock that is one-quarter of its length to the left and by its own weigh which is at the Centre of Mass, one-quarter of its length to the right.  Therefore, the mass of the stick must be one kilogram, 1 kg.

ε=− dϕ​/dt
=−β(dA/dt)

​⇒∣ε∣=βπd(R_0​+t)²
=2πβ(R_0​+t)
Since inward flux is increasing the EMF will be induced counter clockwise.
 

Wavelength of light used is inversely proportional to number of fringes observed.

Mass, m = 14.5 kg
Length of the steel wire, l = 1.0 m
Angular velocity, ω = 2 rev/s = 2 × 2π rad/s = 12.56 rad/s
Cross-sectional area of the wire, a = 0.065 cm² = 0.065 × 10^-4 m²
Let Δl be the elongation of the wire when the mass is at the lowest point of its path.
When the mass is placed at the position of the vertical circle, the total force on the mass is:
F = mg + mlω²
= 14.5 × 9.8 + 14.5 × 1 × (12.56)²
= 2429.53 N
Young’s modulus = Strss / Strain
Y = (F/A) / (∆l/l)
∴ ∆l = Fl / AY
Young’s modulus for steel = 2 × 10¹¹ Pa
∆l = 2429.53 × 1 / (0.065 × 10^-4 × 2 × 10¹¹)   =   1.87 × 10^-3 m
Hence, the elongation of the wire is 1.87 × 10^–3 m
Hence 1.87 × 10^–3 m

According to Fleming’s right-hand rule induced current flows from Q to P.
Hence P is at higher potential and Q is at lower potential. 
Therefore, A is positively charged and B is negatively charged.
Hence:
q_A​=+800μC and q_b​=−800μC

In a.c. circuits, a choke coil is used to control the current in place of a resistance. If a resistance is used to control the current, the electrical energy will be wasted in the form of heat. Due to its inductive reactance, a choke coil decreases the current without wasting electrical energy in the form of heat.

We define length and time separately as it is not possible to define velocity without using these quantities. This means that one fundamental quantity depends on the other. So, these quantities cannot be listed as fundamental quantities in any system of units.

F = YA (∆l/l)
F = Mg, Y = Sy, A = A using this we get
So, Mg ≤ Sy x A => A ≥ Mg/Sy

  (orbital speed υ₀ of a satellite)

Near the earth’s surface is equal to 1/√2
times the escape velocity of a particle on earth’s surface) Now from conservation of mechanical energy: Decrease in kinetic energy = increase in potential energy

Angular momentum is conserved.
I1w1 = I2w2
I2 = (2/5)I1
I1(40) = (2/5)I1w2
w2 = 100 rpm

We know moment of inertia of solid sphere I_s​=2​/5m_s​R_s²​ and 
moment of inertia of hollow sphere I_H​=2/3​m_H​R_H² ​As per question Is​=IH​
Now,
2/5​ms​Rs2​=2/3​mH​RH2​
as the masses are equal the ratio of their radii will be 
​R_s² /R_H² ​​=2/3​/​2/5​=√5/3​​=(5)^1/2: (3)^1/2

Flux = E. A
⇒ F = Eq
⇒ E= F/q= N/C
⇒ Flux= N/C × m²
= Nm²C^-1

Case of positively charged particle : Two forces are acting on the positively charged particle (a) due to electric field in the positive x-direction. (b) Force due to magnetic field.

This forces will move the positively charged particle towards Y-axis.

Case of negatively charged particle.
Two forces are acting on the negatively charged particle (a) due to electric field in the negative X-direction. (b) due to magnetic field

Same direction as that of positive charge. (c) is the correct answer.

For a diamagnetic material, the value of µ_r is less than one. For any material, the value of ∈_r is always greater than 1.

Coefficient of viscosity (η)= Fr/Av   

 F= tangential Force, Area, r= distance between the layers, v= velocity.

Dimensional Formula of Force = M¹L¹T^-2.
Dimensional Formula of Area= M⁰L²T⁰.
Dimensional Formula of distance= M⁰L¹T⁰.
Dimensional Formula of velocity= M⁰L¹T^-1.

Putting these values in above equation we get,

[η]= [M¹L¹T^-2][M⁰L¹T⁰] / [M⁰L²T⁰] [M⁰L¹T^-1] = [M¹L^-1T^-1]

If a magnet is freely suspended or inclined or dipped, the angle between the horizontal and the angle of inclination of the magnet that is inclined only by the earth’s magnetic field will indicate the magnetic latitude. The relation is as follows:
tanδ=2tanλ