DSE Odisha TGT Science PCM Mock Test - 3 - OTET MCQ

Manjul Bhargava became the first Indian male to win the prestigious Fields Medal in Mathematics. He received this award in 2014 for his groundbreaking work in number theory.

The Indian Meteorological Department (IMD) conducted the Pre-Cyclone Exercise to assess preparedness for the upcoming cyclone season, reflecting their ongoing commitment to disaster management and public safety as they celebrate their 150th year of service.

The UEFA Champions League Trophy is awarded to the winners of the UEFA Champions League, the annual club football competition organized by the Union of European Football Associations (UEFA).

The Godavari River is known as Dakshina Ganga, which means "the Ganges of the South". The Godavari is the second longest river in India, flowing through several states in southern and central India, including Maharashtra, Telangana, Andhra Pradesh, and Odisha, before emptying into the Bay of Bengal.

Complement of 30°20′ = 90° – ( 30°20′ ) = 90° – ( 30° + 20′ )
= (89° – 30°) + (1° – 20′)
= 59° + 60′ – 20′ [ ∴ 1° = 60°′]
= 59° + 40′ = 59°40′.

From statement I alone, we don’t get the answer.

From statement II alone, Q is sitting 2nd to the left of T. T is facing P. The number of friends sitting between P and Q is same as the number of friends sitting between P and W.

From statement II alone, we don’t get the answer.

Combining both statement I and II, we get,

From statements I and II together, we don’t get the answer.

Hence, option ‘D’ is correct.

Let, the measure of the required angled be A°.
Then, measure of its complement = ( 90 – A )° measure of its supplement = (180 – A)°
According to question,
6(90° – A) = 2(180° – A) –12°
⇒ 540° – 6A = 360° – 2A – 12°
⇒ 4A = 192°
⇒ A = 48°.

CD || AB (Given)
Produce RQ to meet AB in S
∠CRS = ∠PSR (at. int. ∠s)
But ∠CRS = 55°
∴ ∠PSR = 55°
Now in QSP
∠QSP + ∠QPS + ∠PQS = 180°
55° + 38° + ∠SQP = 180°
∴ ∠SQP = 180° – 93° = 87°
But angle a and ∠PQS are linear
∠a = 180° – 87°
∠a = 93°

In our life, we try to learn new things from our family first. Then when we come into society, that leads us to learn different things from different perspectives. Social development is when we learn or develop ourselves by practising or experiencing new things from society.
Hence, the correct answer is "Social development".

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

Gifted students have some advanced mental potential as compared with other children. Hence, they should be asked to spend more time on questions dealing with creating so that their extraordinary abilities can be channelled into discovering new ways to solve a problem.
Hence, this is the correct answer.

Extra classes could be arranged for such students so as to  bridge the gap in studies (concepts).

Teaching regularly and effectively in a class by teachers develops an interest in students in studies and it prevents them from being absent from school. The teacher must make sure that the study material used in the class is interesting for the students, and that she is able to clearly convey the idea. The involvement of students is also a must to develop interest in studies, and hence reduce absenteeism in the class.

A student always feels tense when he is unaware of things happening to him and happening around him. Mere words from someone on whom he relies upon can act wonders in such cases. The teacher must tell him that it is normal and is due to hormonal changes.

Learning is effective in an environment that is emotionally positive and satisfying to learners. Any learner who is emotionally unstable may not be able to learn anything. The teacher must make the environment conducive for students to study and learn efficiently.
Errors made by the students do not indicate that no learning has taken place. Instead, they are the windows through which a teacher can understand the thought process of the students.
Learning is affected by emotional factors at any stage. Emotions change over time as the child matures, and in response to changing environmental interactions. The kind of learning that takes place at different emotional levels also differs.
Learning involves physical, social and emotional activity also.

The concrete operational stage is defined as the stage of child development in which a child starts performing mental operations and starts thinking logically. This stage occurs in children at the age of 7 – 11 years.

The teacher can deal with the individual differences of the students if she is aware of the abilities, interest and aptitudes of each student. She can then concentrate on each student and help them overcome the difficulties that they have.

Interference is a known phenomenon in which two coherent sources of light meet and produce a resultant effect, i.e either a wave of greater or lower amplitude.
The intensity and amplitude changes depending on whether it's constructive or destructive interference. However, energy is distributed equally and hence remains conserved.

The Huygens-Fresnel principle states that every point on a wavefront is a source of wavelets. These wavelets spread out in the forward direction, at the same speed as the source wave. The new wavefront is a line tangent to all of the wavelets.
The correct answer is option B.

We are given that:
Focal length = 20 cm
In a convex mirror image is formed between focal length and mirror.
So the maximum distance is f i.e. focal length of the mirror.  
Now
f = 20 / 2 = 10 cm
Thus the largest distance of an image from a convex mirror is 10 cm.
 

Here, R₁ = 20cm,R₂ = −40cm, f = 20cm
Using lens makers formula we get,


⇒ μ = 5/3

As the electron is moving along the direction of the magnetic field, it will experience no magnetic force, but due to an electric force acting on it opposite to the direction of electric field (as it is a negatively charged particle) the velocity of the electron will decreases.

Hydrogen, the first in the list of elements is a special case and can be considered as making up the first period all by itself. The second and third period in Meyer's table included seven elements each, and duplicated Newlands's law of octaves.

Li Be B C N O F

Na Mg Al Si P S Cl 

However, the next wave had more than seven elements. The third wave had about 17 to 18 elements. This clearly showed where Newlands’ law had failed. One could not force the law of octaves to hold strictly throughout the table of elements, with seven elements in each row. After the first two periods, the length of the period had to be longer.so all the correct answer.

Mendeleev's Periodic Table was initially arranged based on increasing atomic mass. He noticed that elements with similar properties appeared at regular intervals when arranged in order of increasing atomic mass.

Above information has no common element in three of them and U of three sets forms sample set . Therefore option C is correct.

3^2x2 = 3⁴ = 81

The orthogonal projection on x- axis is given by :