DSE Odisha TGT Science PCM Mock Test - 8 - OTET MCQ

Dadra & Nagar Haveli and Daman & Diu were merged into a single Union Territory.

The Indian Air Force is primarily responsible for securing Indian airspace, conducting aerial operations, and providing air support to ground forces.

Talcher Coalfield is located in Angul district in the Indian state of Odisha, in the valley of the Brahmani.

Nomadic Herding or Pastoral Nomadism falls under the category of Primary Subsistence Agriculture. This primitive subsistence activity involves herders relying on animals for various necessities such as food, clothing, shelter, tools, and transport. The herders move with their livestock, and the pattern of movement is irregular, influenced by pasture and water availability.

Let AB be the building and the man is standing at A.

When the car is 200m away from the building, the angle of depression is 60°

tan 60° = BD/AB = √3

⇒ 200/AB = √3

⇒ AB = 115.47 m

⇒ tan30° =BC/AB = x/115.47 = 1/√3

⇒ x = 66.67

Now, the car travels distance CD in 8 seconds

 CD = BD – BC = 200 – 66.67 = 133.33 m

 Speed = 133.33/8 = 16.67 m/s

Let AB be the taller building of height 60 m and CD be the smaller one of height h m.

⇒ DB / AB = tan 30º = 1/√3

⇒ DB = AB x tan 30º

= 34.64 m.

tan 30º = AE/CE = AE/DB = 1/ = AE/34.64

∴ AE = 60 – h = 20

∴ h = 40 m

Height of the triangle = √(13² – 12²) = 5 meters


Hence, Option A is correct.

πr² + 2πr = 704
πr(r + 2) = 704

r × (r + 2) = 224
r = 14
So the answer

Hence, Option C is correct.

Let AB be the tower and CD be the observer

tan30° = AE/CE

⇒ 1/√3= (AB – CD) / x = (50 – 1.5) / x = 48.5/x

x = 84 m

Let AB be the observer and CD be the tower.

Draw BE ⊥ CD.

Then, CE = AB = 1.6 m,

BE = AC = 20√3 m.

∴ CD = CE + DE = (1.6 + 20) m = 21.6 m.

The Name box in Excel is a useful tool that allows users to easily navigate and reference specific cells or ranges within a worksheet. Here is a detailed explanation of the Name box and its features:
Definition of the Name box:
The Name box is a designated area in Excel where users can see and enter the names of cells or ranges. It is located to the left of the formula bar, making it easily accessible for users to interact with.
Features of the Name box:
1. Shows location of the previously active cell: When a user selects a cell or range, the Name box displays the address of the previously active cell. This is helpful for users to keep track of their current position within the worksheet.
2. Appears at the left of the formula bar: The Name box is positioned to the left of the formula bar in Excel. This placement ensures that users can quickly locate and utilize the Name box while working with formulas and functions.
3. Allows users to enter names for cells or ranges: Users can also manually enter names for cells or ranges directly into the Name box. This feature enables users to create custom names for specific cells or ranges, making it easier to reference them in formulas or data analysis.
4. Provides a dropdown list of named cells or ranges: The Name box includes a dropdown list that displays all the named cells or ranges within the current workbook. Users can select a name from this list to navigate directly to the corresponding cell or range.
5. Facilitates quick navigation within a worksheet: By entering a cell or range name into the Name box, users can instantly move their active cell to the specified location. This feature eliminates the need for manual scrolling and clicking, making navigation more efficient.
In conclusion, the Name box in Excel serves as a valuable tool for navigating, referencing, and managing cells or ranges within a worksheet. Its placement, functionality, and user-friendly features make it an essential component of Excel's interface.

How to Activate a Cell in Excel
To activate a cell in Excel, you have multiple options. These options include:
A: Pressing the Tab key
- Press the Tab key on your keyboard to move the active cell one column to the right.
B: Clicking the cell
- Simply click on the cell you want to activate with your mouse pointer. This will make the cell active, and you can start editing or entering data.
C: Pressing an arrow key
- Use the arrow keys (up, down, left, or right) on your keyboard to move the active cell in the desired direction. For example, pressing the right arrow key will move the active cell one column to the right.
D: All of these
- All of the options mentioned above can be used to activate a cell in Excel. You can choose any of these methods depending on your preference or convenience.
Remember, activating a cell is important as it determines which cell you are currently working on and where your data or formulas will be entered or edited. Excel allows you to navigate and activate cells quickly and efficiently using various methods.

Homework is what children do at home on their own. As children learn to do things on their own, they do again and again that makes them perfect and understand the concepts clearly and can explain it in their own words, but the thing that children are not social with people or not interacting with others. That's why the socialization process is an important skill in the life of a learner.
Hence, the correct answer is "Homework".

The Ministry of Women and Child Development makes laws and regulations to take care of the women and child development in India.

Inclusion is all about effective learning by all children which is based on the social model of equality of opportunity. The practice is based on the principle of respect for difference and acceptance of diversity as part of nature and humanity. 

• In the inclusive system of education, an Individualized Educational Plan, commonly known as IEP, is developed for those students who have special needs. 
• Individualized Education Program focuses on providing appropriate education and training to every child with a disability, including those with mental retardation.
• In IEP, teachers need to understand the child’s background well by collecting information on the child’s personal details, family environment, etc.
• This will help the teacher not only to build a rapport with the child but find out his/her strengths in both academic, non-academic, and life skill areas.

Defining a problem is called problem-solving. Problem-solving includes steps like identification of the problem, generation of solution or exploring possible strategies, anticipating outcomes, implementation, etc. But it doesn't include breaking down the problem into smaller parts in the process of problem-solving.
Hence, the correct answer is, 'Breaking down the problem into smaller parts.'

Visual acuity or VA is tested and measured by asking the patient to identify images or read letters on a chart. Black letters or symbols against white on a chart represent extreme contrast. This helps the vision technician to measure a patient’s acuity of vision. 

Making the mentally retarded students learn through concrete experiences and making them apply the learned skills will surely work for mentally retarded children. Therefore, it becomes important for the teacher to plan out instructions for clear understanding of the concepts. 

All languages will be taught with high quality to all students; a language does not need to be the medium of instruction for it to be taught and learned well. The teaching of all languages will be enhanced through innovative and experiential methods, including through gamification and apps, by weaving in the cultural aspects of the languages - such as films, theatre, storytelling, poetry, and music - and by drawing connections with various relevant subjects and with real-life experiences.

Key Points

•  In addition to high-quality offerings in Indian languages and English, foreign languages, such as Korean, Japanese, Thai, French, German, Spanish, Portuguese, and Russian, will also be offered at the secondary level, for students to learn about the cultures of the world and to enrich their global knowledge and mobility according to their own interests and aspirations.
• It can be studied as an additional option.

Thus, it is concluded that National Education Policy (NEP) 2020 recommends the study of foreign languages as additional options at the secondary stage.

Emotions involve feelings of pleasantness and unpleasantness. It can be expressed in various ways, like facial expressions on the face, gestures, like volume and tone of speech, by the behavioral display or motives of a person.

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- 

• Full equity and inclusion as the cornerstone of all educational decisions to ensure that all students are able to thrive in the education system. 
• It includes the overall development of the leader, it covers all three aspects as Cognitive domain, affective domain, and psychomotor domain.
• Emphasis on conceptual understanding rather than rote learning and learning-for-exams.
• Promoting self-assessment and the peer assessment done by the student in the classroom.
• Respect for diversity and respect for the local context in all curriculum, pedagogy, and policy, always keeping in mind that education is a concurrent subject.
• Establishment of the linkage of the concepts with the environment or we can say that the linkage of the school with the home.
• Promoting engaging and contextual pedagogy to ensure retention of students from socio-economically disadvantaged groups.
• Promoting multilingualism and the power of language in teaching and learning.
• Creativity and critical thinking encourage logical decision-making and innovation.
• It emphasizes group work as well as individual work, NEP 2020 links the study to the curriculum.

Thus by all these references, we can conclude that according to the NEP 2020 the engaging and contextual pedagogy ensures the retention of students from socio-economically disadvantaged groups.

Hint

• Standard curriculum: Standard curriculum should not be followed in the classroom, Curriculum should be flexible and based on the needs and abilities of the learners.
• Learning of the students should be done in multiple ways, such as observational learning, learning through interaction, etc. it should not be only textbook based.

 National Education Policy is the first education policy of the 21st century and aims to address the many growing developmental imperatives of this country. This Policy proposes the revision and revamping of all aspects of the education structure, including its regulation and governance, to create a new system that is aligned with the aspirational goals of 21st-century education, while remaining consistent with India’s traditions and value systems.

• The National Education Policy emphasizes the development of each individual's creative potential, in all its richness and complexity.

Key Points

The National Education Policy 2020 has set an ambitious goal of achieving universal foundational literacy and numeracy for primary school children by 2025. This means that by the time children reach grade 3, they will be able to read a grade 3 language textbook and attain essential addition and subtraction skills.

• Attaining foundational literacy and numeracy for all children must receive urgent national attention, with immediate measures to be taken on many fronts and with clear goals that will be attained in the short term (including that every student must achieve foundational literacy and numeracy by Grade 3).
• The very highest priority of the education system will be to achieve universal foundational literacy and numeracy in primary school and beyond by 2025.
• If we specifically talk about  Universal foundation numeracy then the first objective of NEP 2020 to achieve Universal foundation numeracy by 2025 is to achieve build the Number sense in children.
• The rest of this Policy will be largely irrelevant for such a large portion of our students if this most basic learning requirement (i.e., reading, writing, and arithmetic at the foundational level) is not first achieved.
• To this end, all State/UT governments will immediately prepare an implementation plan for attaining universal foundational literacy and numeracy in all primary and middle schools, identifying stage-wise targets and goals to be achieved by 2025, and closely tracking and monitoring the progress of the same.

Thus, it is concluded that the first objective of NEP 2020 to achieve Universal foundation numeracy by 2025 is number sense.    

Infra red rays are basically heat radiation that gives warmth which support the plant growth. It also helps in treating muscle pain in the same way we use hot water massage for muscle cramps.

Initial unpolarized intensity is 2a² 
the intensity of light transmitted by the first polarizered will be I_unpolarized/2​​=a²
option A is correct

The molecules of air and other fine particles in the atmosphere have a size smaller than the wavelength of visible light. These particles are more effective in scattering light of a shorter wavelength at the blue end than the light of the longer wavelengths at the red end. The red light has a wavelength 1.8  times greater than blue light. Thus, when sunlight passes through the atmosphere, the fine particles in the air scatter the blue color more strongly than red color. The scattered blue light enters our eyes and we see the blue color of the clear sky.

E is the electric field vector, and B is the magnetic field vector of the EM wave. For electromagnetic waves E and B are always perpendicular to each other and perpendicular to the direction of propagation. Electromagnetic waves are transverse waves. The wave number is k = 2π/λ, where λ is the wavelength of the wave.

for concave mirror u=−7.5 ; f=−5
(1/v)+1/u=1/f
1/v-2/15=-1/5
i.e, image formed at pole of convex mirror for convex mirror, u=0;f=+5
(1/v)+1/u=1/f
(1/v)+1/0=1/5
V=0
So the final image is formed on a pole of a convex mirror.

Here, u = -45 cm,  v = 90 cm 

when the needle is move 5 cm away from the lens,
u = -(45 + 5) = -50 cm

∴ Displacement of image = v - v' = 90 - 75 = 15 cm, towards the lens

The permeability of free space, μ0, is numerically equal to 4π x 10-7. For air and other non-magnetic materials, the absolute permeability is the same constant. For magnetic materials, absolute permeability is not a fixed constant but varies non-linearly with the flux density.

Electromagnetic waves vary in wavelength and frequency. Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies. Higher frequency waves have more energy.