DSE Odisha TGT Science PCM Mock Test - 6 - OTET MCQ

Odisha Renewable Energy Development Agency (OREDA) is the apex body of Odisha Government to provide alternative/non conventional forms of energy in the state.

The Henri Delaunay Trophy is awarded to the winner of the UEFA European Championship, commonly known as Euro, the quadrennial international men's football championship of Europe.

The Ashes is a cricket series played between England and Australia. The trophy is a small urn containing the ashes of a cricket bail and is one of the most significant contests in cricket.

The Larry O'Brien Championship Trophy is awarded to the winners of the NBA Finals, the championship series of the National Basketball Association (NBA).

The starting four multiples of 2 is 2, 4, 6, 8
a=2 and d=2
n=4
S(n) = (n / 2) x [2a + (n - 1) x d]
S(4) = (4 / 2) x [2 x (2) + (4 - 1) x 2]
= (2) x [4 + 6]
= (2) x [10]
= 20

The triangle 6 shown in figure and another is ADB,ACB, BDC,ADC, so that total number of triangle is 10

Given, 3, 8, 13, 18, … is the AP.
a = 3
d = a(2) – a(1) = 8 − 3 = 5
Let a(n) term be 78.
a(n) = a + (n − 1) x d
78 = 3 + (n − 1) x 5
75 = (n − 1) x 5
(n − 1) = 15
n = 16

Given number: 7 8 3 4 3 2 9 5 1 3

After interchanging the digits,
New number: 8 7 4 3 2 3 5 9 3 1

6th digit from right end

 a = -3 and a(2) = 4
a = -3
d = 4 - a = 4 - (-3) = 7
a(21)=a + (21-1) x d
= -3 + (20) x 7
= -3 + 140
= 137

An input device used to move the pointer (cursor) on screen. The major pointing device is the mouse for the desktop computer and the touchpad for the laptop, although many road warriors bring along a mouse. Pointing sticks are available on some laptops, and a small number of users prefer trackballs over the mouse.

Key Points 

• It is well knowledge that young infants acquire significant concepts more quickly in their mother tongue or home language.
• The mother tongue or the language used by the neighborhood is typically the same as the home language.
• However, there may occasionally be a home language used by other family members in multilingual households that is distinct from the mother tongue or the local vernacular.
• National Education Policy 2020 proposes that wherever feasible, the home language, mother tongue, local language, or regional language will be used as the medium of teaching until at least Grade 5, but preferably until Grade 8 and beyond.

Hence, At the primary level, National Education Policy 2020 proposes mother tongue/Home language as the medium of instruction across the nation.

Visual Impairment: The term 'visual impairment' is used to refer to not only those who are blind but also those who have their own vision. When the person has residual vision above a certain level, he is said to have low vision or poor vision. However, if the residual vision is below that level, he is considered to be blind.

Important Points

In a classroom situation, the total number of blind students should be 10-12, so that teacher can adopt the strategies which cater individual differences in the class.

Strategies to teach blind students in the classroom:

• Teachers who teach blind children in ordinary classrooms need to provide adequate special materials and equipment. There is almost universal agreement that the special materials and equipment needed by a visually impaired student in a regular school are essential to success.
• In addition, Friendly user materials are good teaching materials for blind children, and creative materials which are provided to blind children enhance dialogue and social interaction to complete an assignment. 
• Students with visual impairments who's knowledge of concepts are strong would have difficulty keeping pace with this rate of instruction unless it is entirely verbal.
• Purposeful sampling was used to select teachers who teach blind children in ordinary classrooms. Legibility for teacher’s participation in the study was based on the following criteria:
  • experience in teaching blind children with their distance vision assessment results indicating that they are blind with (visual acuity of (3/60 or worse).
  • Teaching ordinary classrooms,
  • fully attending school at the time of the study, and
  • gender balance was desirable but not necessary.
• The teacher who is guiding the blind children in ordinary classrooms is supposed to know more than the blind pupils who are being guided, that is why very many blind children have fallen victims to wrong teaching. Guidance is needed for blind children since they can hear, it is easy for them to learn.

Hence, we can conclude that in a classroom situation, the total number of blind students should be 10-12.

Variability in learning styles of students should be valued and seen as a reflection of human diversity.

The early life of a child from birth to the age of two years is called infancy. Parents play a very vital role in the growth and development of a child during this period.

Active participation is one where the learners actively construct knowledge in the facilitating environment provided by the educators.

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 PointsSome 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.
• Promoting self-assessment and the peer assessment done by the student in the classroom.
• Focus on regular formative assessment for learning rather than the summative assessment that encourages today’s ‘coaching culture. It promotes 360- degree multidimensional progress report cards on the basis of different methods of assessments.
• 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.
• Emphasis on conceptual understanding rather than rote learning and learning-for-exams.
• Creativity and critical thinking encourage logical decision-making and innovation.
• Establishment of the linkage of the concepts with the environment or we can say that the linkage of the school with the home.
• Promoting multilingualism and the power of language in teaching and learning.
• It emphasizes group work as well as individual work, NEP 2020 links the study to the curriculum.

So that we can conclude that 360- degree multidimensional progress report cards follow National Education Policy 2020 proposes in the content of the assessment.

Teachers must always ask questions in the class because it keeps the students alert in class. Their previous knowledge is checked and the concepts are also made clear.

Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. In space, infrared light helps us map the dust between stars.
Visible: Our eyes detect visible light. Fireflies, light bulbs, and stars all emit visible light.

Ultraviolet: Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns. "Hot" objects in space emit UV radiation as well.

X-ray: A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. Hot gases in the Universe also emit X-rays.

Gamma ray: Doctors use gamma-ray imaging to see inside your body. The biggest gamma-ray generator of all is the Universe.

The electromagnetic wave travels in vacuum along z-direction. Then, the electric field vector and magnetic field vector will be in the XY plane.
Frequency of the wave = 30 MHz
Converting into Hz, v = 30× 10⁶ Hz.
speed of light, c = 3 × 10⁸ m/s
Wavelength of the wave can be calculated using the following relation:
λ = c/v
⇒ λ = 3 × 10⁸/30 × 10⁶
⇒λ = 10 m

Current provided by a battery is maximum when internal resistance is equal to external resistance. As a battery discharges, not only does it diminish its internal store of energy, but its internal resistance also increases (as the electrolyte becomes less and less conductive), and its open-circuit cell voltage decreases (as the chemicals become more and more dilute). The most deceptive change that a discharging battery exhibits is increased resistance.

For diffraction, the width of the slit must be less than the wavelength of the incident ray.

When a charged particle enters a magnetic field B its kinetic energy remains constant as the force exerted on the particle is:

is perpendicular to so the work done by =0. This does not cause any change in kinetic energy.

a car battery of 12V provides a current of about 200A, which is the current needed to operate a starter motor. So a battery has a very small internal resistance.
also,The cause of non-correctable battery problems and.A weak cell holds less capacity and is discharged more quickly.

x² + y² + 6x − 6y + 5 = 0
Center O = (-3, 3)
radius r = √{(-3)² + (3)² - 5} 
= √{9 + 9 - 5} 
= √13
Since diameter of the circle passes through the center of the circle.
So (-3, 3) satisfies the equation 2x – y + λ = 0
=> -3*2 - 3 + λ = 0
=> -6 - 3 + λ = 0
=> -9 + λ = 0
=> λ = 9

sin 30° = 1/2,
cos 30°=√3/2,
sin 60°=√3/2,
cos 60°=1/2,
By putting the value of sin 30°, cos 30°, sin 60° and cos 60° in equation

We get=
(sin30°+cos30°)-(sin60°+cos60°)=(1/2+√3/2)-(√3/2+1/2)
=0