EMRS PGT Physics Mock Test - 2 - EMRS MCQ

The logic followed is:

Given code: "MANIPUR is written as NBOJQVS" 

Similarly,

Thus "PATTERN will be written as "QBUUFSO".

Hence, the correct answer is "QBUUFSO". 

ICT (Information and communication technology) mediated teaching-learning refers to instruction via a technological channel such as television, radio or a computer.

• It creates learning as the ability to retain, synthesize, and apply conceptually complex information in meaningful ways. It encourages learning by doing. It enhances the learning environment and requires students to develop critical thinking research and evaluation skills.

Key Points

Dillemans, et. al. (1998) have identified six basic dimensions of an ICT-mediated teaching learning-

1. Information modality: This dimension refers to the ability of the available technology in an ICT-mediated teaching-learning environment to transmit verbal and nonverbal information.
2. Linearity: This dimension talks about the technologies which can be used to transmit information in a linear as well as nonlinear way in the environment.
3. Type of interaction: An effective ICT-mediated teaching-learning environment facilitates all types of interactions human-human as well as human-machine interaction.
4. Number of participants: As per the availability of resources in an ICT-mediated teaching-learning environment, the number of participants in a session is also an important issue. It depends upon the technology in the institution as well as learners and teachers. Their interaction through ICT-mediated teaching learning can be one alone, one to many, and many to many.
5. Time/place dependency: It talks about the ability of the technology to transmit information at different times and places. It may be synchronous or asynchronous or both
6. Immediacy: In an ICT-mediated teaching-learning environment, the amount of time for sending a message and getting a response to this message is improving day by day with advancements in technologies and their convergence.

Hence, we conclude that according to Dillemans, et. al., there are six dimensions of an ICT-mediated teaching-learning environment.

Information and Communication Technology(ICT) is defined as a diverse set of technological tools and resources used to communicate, create, disseminate, store, and manage information.

Key Points

Role of ICT in Learning:

• ICT promotes the learner-centric curriculum approach by supporting the learners' needs and capabilities while promoting creative and critical thinking. 
• It fulfills the gaps between teaching and learning by promoting modern approaches such as multi-sensory learning that engages more than one sense at a time.
• The lessons can be presented to the students in a variety of methods that will best engage them in the material and excite their brains and ultimately enhances their teaching-learning experience.
• Information and communication technologies (ICT), when made accessible and available, enable children with disabilities to fully and effectively engage, on an equal basis, in all facets of society and development.
• It allows students and teachers to access information (books, articles, blogs, etc.). Students can learn about their subjects by watching videos, pictures, and listening to audio content.

Hence, it is clear that the role of ICT as a support and learning school management does not include the traditional approach through the medium of ICT.

The advent of ICT in education has resulted in the utilization of a number of varied technologies in education and training. These technologies are:

Teleconferencing:

• This method propagates meeting through telecommunication.
• Audio and video conferences, computer and web-based conferences are some of the types of teleconferencing methods available.
• The main advantages of this method of interactive communication is that it saves time, less expensive, caters to large audiences, allows flexibility and accessibility.
• It becomes easier to teach children in remote locations.
• Centralized teaching and real-time learning are also the advantages of teleconferencing.

Emailing: It is a means of exchanging information electronically. It can be used as a way of communication between the instructors and students.

Blogging: It is an online journal where thoughts and ideas about a subject can be shared with the readers. It can be used as an educational tool to foster a community of l

Key Points

• ICT has also become integral to the teaching-learning interaction, through such approaches as replacing chalkboards with interactive digital whiteboards, using students’ own smartphones or other devices for learning during class time, and the “flipped classroom” model where students watch lectures at home on the computer and use classroom time for more interactive exercises.
• Teachers need specific professional development opportunities in order to increase their ability to use ICT for formative learning assessments, individualized instruction, accessing online resources, and fostering student interaction and collaboration.
• In many ways, ICT has become a part of children's everyday lives, even in preschools. The computer has now become a common tool for the education of preschool children because when used appropriately, it can reinforce their learning experiences.

It can be concluded that clear instructions are important in ICT-supported teaching-learning strategies.

Mrs. Sen is most liked by her students because she has knowledge to answer each and every question asked by the children and she also practises child pedagogy while teaching. This supports children in their social and mental development. Using different teaching techniques or dressing up in different attires everyday doesn't make a teacher likeable to students.

Formative evaluation refers to a wide variety of methods that teachers use to conduct in-process evaluations of student comprehension, learning needs and academic progress during a lesson, unit or course.

Useful strategies for teaching students with mental retardation include the following:

• Teach one concept or activity component at a time
• Teach one step at a time to help support memorisation and sequencing
• Teach students in small groups, or one-on-one if possible
• Always provide multiple opportunities to practice skills in a number of different settings
• Use physical and verbal prompting to guide correct responses, and provide specific verbal praise to reinforce these responses

Summative assessment (or summative evaluation) refers to the assessment of participants where the focus is on the outcome of a programme. This contrasts with formative assessment, which summarises the participants' development at a particular time.

In junior section, Mrs Singh is teaching about Earth, its shape and rotation by using a globe. In such teaching, learning take place by observation. Students observe the globe to get knowledge.

Observational learning is the learning that occurs through observation of the behavior of others. It is a form of social learning which takes various forms, based on various processes.

We know, the gravitational force 
,
This is valid when R is the centre to centre distance between the two masses M and m.
At a distance r < R, the mass of Earth cannot be taken as M.

The new mass (M'):
The mass of earth will be contained for a radius r. Let us assume that the mean density of the earth is ρ and that earth is a sphere with a radius equal to the distance r. We know, mass = density × volume

Therefore the gravitational force, F = 

Hence the gravitational force, F ∝ r

“A cloth covers a table. Some dishes are kept on it. The cloth can be pulled out without dislodging the dishes from the table.” This is a very common phenomenon and can be seen when the cloth is pulled very quickly. But it can’t be explained by the 3rd Law of Motion.

Explanation:Equal vectors are vectors that have the same magnitude and the same direction. Equal vectors may start at different positions.

E=stress/strain
Strain x E= Stress

We have the relation between current I, n = no. of carrier per unit volume, drift velocity v_e and CSA A as.

I = neAv

Let current flowing in the 2nd wire I₂ = I thus current flowing through the 1^st wire I₁ = 4I

Let the radius of the first wire be r thus radius of the 2^nd wire = 2r

In the first wire

A₁ = πr²

In the 2^nd wire

A₂ = π(2r)² = 4πr²

I₁/ I₂ = (A₁v₁ )/(A₂v₂ )  (ne being same for two wires as they are made of the same material)

4I/I = πr² v₁/4 πr²v₂

=> v₁/v₂ = 16/1

=> v­₁:v₂ = 16:1

Thus ratio of the drift velocities are 16:1

For the formation of distinct beats, frequencies of two sources of sound should be nearly equal, i.e., difference in frequencies of two sources must be small, say less than 10. The impression of sound heard by ow ears persists on our mind for 1 /10th of a second. If another sound is heard before (1 /10) second passes, the impressions of the two sounds mix up and our mind cannot distinguish between the two. In order to hear distinct beats, time interval between two successive beats must be greater than 1 /10 second. Therefore, frequency of beats must be less than 1 0,i.e., number of beats/sec, which is equal to difference in frequencies of two sources must be less than 10. Hence the two sources should be of nearly equal frequencies. 

Explanation:An object that falls through a vacuum is subjected to only one external force, the gravitational force, expressed as the weight of the object. An object that is moving only because of the action of gravity is said to be free falling and its motion is described by Newton's second law of motion. With algebra we can solve for the acceleration of a free falling object. The acceleration is constant and equal to the gravitational acceleration g which is 9.8 meters per square second at sea level on the Earth. The weight, size, and shape of the object are not a factor in describing a free fall.

Induced emf= d(flux)/dt​=R[dq​/dt]
⇒Δq= Δ(flux)​/R=2BA/R​

Compare the given eqn. with the standard from I=I0sinωt
I₀=8, Irms=I₀/√2=8/√2=5.656A

By the principle of superposition of fields

Here  = net field at the centre of hole due to entire mass

 = field due to remaining mass

 = field due to mass in hole = 0

Magnetic field due to current in wire 1 at point P distant r from the wire is

 (directed perpendicular to the plane  of paper, inwards)

The force exerted due to this magnetic field on current element i₂ dl is

dF = i₂ dl B sin 90°

The direction of propagation of the electromagnetic wave is always perpendicular to the plane in which
So, the direction of the propagation of the wave, 
Hence, option B is the correct answer.

x_com=m₁x₁+m₂x₂/m1+m₂
=1x2+3x (-6)
=-4î
v_com= m₁y₁+m₂y₂/m₁+m₂
=1x5+3x4/4
=17/4 ĵ
z_com= m₁z₁+m₂z₂/m₁+m₂
=13-6/4
=7/4 k̂
r_com=-4î+17/4 ĵ+7/4 k̂
=1/4(-16î+17ĵ+7k̂)m

A punishment can never help in making an emotional connect with the children. So, this option is NOT TRUE for corporal punishment.

Socialization is an important process for the functioning and continuation of society. It is a process of learning the rules, habits, and values of a group to which a person belongs whether it is family, friends, colleagues, or any other group.

X-rays are absorbed by the atmosphere and therefore the source of X-rays must lie outside the atmosphere to carry out X-ray astronomy and therefore satellites orbiting the earth are necessary but radio waves and visible light can penetrate through the atmosphere and therefore optical and radio telescopes can be built on the ground.

'जीभ' का पर्यायवाची है- 'रसना'

• जीभ का अन्य पर्यायवाची शब्द - जिह्वा, रसज्ञा, चंचला।

Mistake Points

• वचन का पर्यायवाची शब्द - शब्द, वाक्य, वाणी, बोली, आश्वासन, वादा, प्रण, प्रतिज्ञा।
• ध्वनि का पर्यायवाची शब्द - नाद, रव, स्वर, ताल, आवाज।
• जीव का पर्यायवाची शब्द - रूह, प्राण, आत्मा, जीवात्मा।

Key Points

• जो शब्द समान अर्थ के कारण किसी दूसरे शब्द की जगह ले लेते हैं उन्हें पर्यायवाची शब्द कहते हैं।

Additional Informationकुछ महत्वपूर्ण पर्यायवाची शब्द:-

• सर्प - साँप, अहि, भुजंग, विषधर, व्याल, फणी, उरग, पन्नग, नाग।
• सिंह - शेर, वनराज, शार्दूल, मृगराज, व्याघ्र, पंचमुख, मृगेंद्र, केशरी, केहरी, केशी, महावीर।
• पक्षी - विहंग, विहग, खग, पखेरू, परिंदा, चिड़िया, शकुंत, अंडज, पतंग, द्विज।
• अश्व - घोड़ा, हय, तुरंग, वाजी, घोटक, सैंधव, तुरंग।
• मेघ - बादल, जलधर, पयोद, पयोधर, घन।
• इंद्र - पुरंदर, शक्र, शचिपति, सुरपति, देवराज, मघवा, देवेश
• कर्ण - सूर्यपुत्र, राधेय, कौन्तेय, अंगराज, सूतपुत्र।
• चंद्रमा - सुधाकर, शशांक, रजनीपति ,निशानाथ ,सुधांशु।

सही उत्तर है - ‘अचल’।

• पृथ्वी का पर्यायवाची शब्द अचल नहीं होगा।
• अन्य विकल्प इला, अचला और अवनि पृथ्वी के पर्यायवाची शब्द है।

Key Points

• पृथ्वी के अन्य पर्यायवाची शब्द : महि, मेदिनी, धरा, रसा, वसुन्धरा, विकेशी, क्षमा, धरती, धरणी आदि।​
• अचल के पर्यायवाची शब्द : भूधर, महीधर, नगपति, शिखर, अद्री, तुंग, धरणीधर, पर्वत, पहाड़, गिरी आदि।

Additional Informationसमानार्थी शब्द:

• वे शब्द जिनका अर्थ एक समान होता हैं समानार्थी शब्द कहलाते हैं।
  समानर्थी शब्द को हम पर्यायवाची शब्द भी कहते है। ‘पर्याय’ का अर्थ है ‘समान’ तथा ‘वाची’ का अर्थ है ‘बोले जाने वाले’ अर्थात
  समान बोले जाने वाले शब्दों को हम पर्यायवाची शब्द या समानार्थी शब्द कहते है।

पर्यायवाची शब्द के उदाहरण :

• पत्नी- भार्या, दारा, अर्धांगनी, वामा, गृहिणी, बहू, वधू, कलत्र, प्राणप्रिया।
• दोस्त- बन्धु, मित्र, साथी, यार, सखा, हितैषी, अंतरंग।
• बसंत- ऋतुराज, ऋतुपति ,मधुमास ,कुसुमाकर।