AWES PGT Physics Mock Test - 8 - AWES TGT/PGT MCQ

Squadron Leader Dalip Singh Majithia, the oldest living pilot of the Indian Air Force (IAF), passed away at the age of 103. He joined the IAF during World War II, showcasing his bravery and commitment during a crucial period in global history, further highlighting his significant contributions to the Indian military legacy.

The Indian government aims to set up 'Bharat Park,' a trade zone in the UAE, with showrooms and warehouses to display and store Indian-made goods, facilitating international transactions and showcasing products globally.

The time between two successive passages of the mean sun across the meridian at noon is known as mean solar time. It means that solar time is equal to one day. Some additional facts:

• 1 Astronomical Unit = 1.5 × 1011 m. It is used to determine the distance between the earth and the sun. 
• 1 Slug = 14.59 kg. It is a unit of mass in the FPS System. 
• 1 Lunar Month = 27.3 solar days. It is the time between the two consecutive full moons. 

Hence, we conclude that one solar day is of 24 hours.

The Indian Air Force (IAF) is set to conduct ‘Gagan Shakti-2024’, the nation’s largest air military exercise, involving all Air Force stations. Held every five years, it will commence on April 1, 2024, at Pokhran’s field firing range. Approximately 10,000 airmen will participate, with maneuvers spanning the Western and Northern fronts. The Indian Army is aiding logistical support, ensuring synergy across sectors for operational rail mobilization.

A school-based assessment is done within the school by the teachers. It makes the learning relevant and can motivate students through the diagnosis of learning gaps. It helps to know the children's strengths and weaknesses. So, the school-based assessment helps all students learn more through diagnosis.
Hence, the correct answer is, 'Helps all students learn more through diagnosis.'

Lawrence Kohlberg, an American psychologist, has propounded the 'Theory of Moral Development'.

• He has made a systematic study of moral development in his theory that is categorized into 3 levels and 6 stages. 

The New 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. 

Key Points Following are the proposals made by National Education Policy 2020 (NEP):-

•  a variety of methods and strategies such as group work and role plays be used for assessment. 
•  apart from assessment by the teacher, other ways such as self-assessment and peer-assessment should be encouraged.
•  report card of the student should include progress in the cognitive, affective, and psychomotor domains. 
• focus on regular formative assessment for learning rather than the summative assessment that encourages today’s ‘coaching culture.

​Thus, it is concluded that NEP 2020 proposes shift from formative to summative assessment regarding proposals made by National Education Policy 2020 (NEP) is not correct.

The question 'What specialities of Einstein impressed you the most and why?' is most appropriate to evaluate the thought process of a student as it takes into consideration student's thinking. This makes students to choose from among multiple answers and hence they could be engaged in thinking rationally. The answers that come out are also subjective, unlike the direct questions, which fail to evaluate the thought process of students.

The magnetic field is

= 5 × 10^–6 T

According to right hand palm rule, the magnetic field is directed  towards south.

As we know that, potential energy of a magnet in a magnetic field
U=−m⋅B
  =−mBcosθ
where, m= magnetic dipole moment of the magnet 
B= magnetic field

• A physical quantity is a physical property of a phenomenon, body, or substance, that can be quantified by measurement.
• A physical quantity can be expressed as the combination of a magnitude expressed by a number – usually a real number – and a unit.
• All these given above can be expressed as explained so these are physical quantity.

Here

A and C are the correct options.

By law of conservation of angular momentum, in the absence of external torque angular momentum is conserved.
For angular momentum to be constant
τ = 0
Central force: zero torque

The minimum force required to start pushing a body up a rough inclined plane is 
F1=mgsinθ+ μgcosθ            ......(i)
Minimum force needed to prevent the body from sliding down the inclined plane is
F2=mgsinθ− μgcosθ           ...........(ii)
Divide (i) by (ii), we get
F1/F2
=sinθ+μcosθ/ sinθ−μcosθ 
= tanθ+μ/tanθ−μ
= 2μ+μ/2μ−μ 
=3              (tanθ=2μ (given))

Mica capacitors are preferred for high frequency circuits because they have low ohmic losses and less reactance.

For var ious combination s equivalent r esistan ce is maximum between P and Q.

g∝1​/R²
Curve b represents this variation.
 

We know that retardation of a car with an initial speed of 50kmph stops after 6 m.
We know that v² - u² = 2as  (third equation of motion)
► 0 - 50² = 2 * a * 6
► a = - 50² / 12
Hence when the initial speed is 100 kmph
We get,
► -100² = 2 * a * s
► 2 * s = 12 * (100² / 50²)
Thus we get s = 24 m.

Electric field due to a charge q at a distance r is  and electric potential at that point is  Therefore,  and  Dividing these two equations, we get r=0.5m. If the medium is air, k=1. Thus we can get the value of q=0.89 C.

We know that,
X_L= ωL
Or, X_L =2πfL   [ ω can be written as, 2πf]
Initially,
X_L1=2πf₁L₁=1000Ω
For the second case,
F  and L both are doubled, so,
X_L2 =2π2f₁2L₁ =4x2πf₁L₁
                        =4000 Ω

Mirage is formed by total internal reflection in deserts where due to heating of earth, refraction index of air near the surface of earth becomes lesser than above it.

Case 1 : Magnetic field at M due to PQ and QR is

Case 2 : When wire QS is joined.
H₂ = (Magnetic field at M due to PQ) + (magnetic field at M due to QR) + (Magnetic field at M due to QS)

NOTE : The magnetic field due to an infinitely long wire carrying current at a distance R from the end point is half that at a distance R from the middle point.

Power = energy / time.
energy = power × time.
energy = watt × hour
= 1watt × 1hour
= 1 × (60×60)
= 3600
= 3.6 × 10³ joule

The answer provided in the forum is wrong, The correct answer would be option A.
Solution:
When the interference occurs with non-coherent sources, intensities of the superimposing waves add like scalars, I = I₁ + I₂

By definition of Electric Dipole

ϕ₂=Mi₁⇒i₂=(1/R)(−dϕ₂/dt)
i₂=−MdI₁/Rdt

So, m1v1 = (m1 + m2)v
Hence v = 0.6 m/s
Now, loss in KE = KE initial – KE final = 7500 – 4500 = 3000 J

We know that centripetal acceleration, a = v x v /r
Here v = 6m/s and r = 0.3m
Thus a = 36 / 0.3 m/s²
= 120 m/s²