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TN TET Paper 2: Science and Mathematics Test - 10 - TN TET MCQ


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30 Questions MCQ Test TN TET Mock Test Series 2024 - TN TET Paper 2: Science and Mathematics Test - 10

TN TET Paper 2: Science and Mathematics Test - 10 for TN TET 2024 is part of TN TET Mock Test Series 2024 preparation. The TN TET Paper 2: Science and Mathematics Test - 10 questions and answers have been prepared according to the TN TET exam syllabus.The TN TET Paper 2: Science and Mathematics Test - 10 MCQs are made for TN TET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for TN TET Paper 2: Science and Mathematics Test - 10 below.
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TN TET Paper 2: Science and Mathematics Test - 10 - Question 1

Floor of a square room of side 10 m is to be completely covered with square tiles, each having length 50 cm. The smallest number of tiles needed is

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 1

Calculation:
Area of square room
= (10)2 = 100 sq m = 100 × (100)2 sq cm
= 100 × 100 × 100 sq cm
Now, area of tile
= (50)2 = 50 × 50 sq cm
∴ Number of tiles needed
= Area of square room/Area of tile

TN TET Paper 2: Science and Mathematics Test - 10 - Question 2

You have given three different tasks to three groups in your classroom -
Group 1: Compare the given figures and find out which one occupies more area.
Group 2: Calculate the perimeter of the given shapes using a ruler.
Group 3: Find out how many steps you can take along the sides of the classroom walls by walking heel to toe.
On what basis have these groups most likely been created?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 2

Group teaching allows freedom for the students to interact freely and establish intimate contact with their teachers on the one hand and with peers on the other. A teacher intends to develop conflict resolution skills among his\her students. To realize this goal, the teacher can organize a variety of tasks.

  • serves as an important tool to make learning meaningful by working together. In groups, students work collaboratively and involve in active learning. It provides an opportunity for the students to work together in an efficient way. 
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TN TET Paper 2: Science and Mathematics Test - 10 - Question 3

Aditi wanted to send a secret message to her friend. She gave her friend a letter which did not seems to have anything written on it. She asked her friend to rub the paper with a slice of beet root and the message appeared in dark red colour. Which of the following could she have used to write the message?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 3

Indicator: 

  • The indicator is a substance that shows different colors in acidic and basic solution
  • Beetroot juice is a pH indicator. 
  • Baking soda solution is basic and beetroot is an indicator.
  • Baking soda reacts with beetroot juice then, the secret message becomes visible. Hence, option 3 is correct.
  • Whereas, common salt is an ionic compound and is neutral. So, it does not react with beetroot. 
  • Glucose is a simple sugar. So, it does not react with beetroot. 
  • Lemon juice is an olfactory indicator.
  • Since beetroot is an indicator and turns red in an acidic medium whereas lemon contains citric acid which also turns red in an acidic medium. So, it does not react with beetroot. 
TN TET Paper 2: Science and Mathematics Test - 10 - Question 4

If a = , then the value of 'a' is

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 4

a = ((2013)2 + 2013 + 2014)1/2
= ((2013)2 + 2013 + 2013 + 1)1/2
= ((2013)2 + 2 x 2013 x 1 + 12)1/2
= ((2013 + 1)2)1/2
= ((2014)2)1/2 = 2014
Thus, option (4) is correct.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 5

A student puts a drop of dilute solution of sodium hydroxide first on a blue litmus paper and then on a red litmus paper. He would observe that

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 5

As sodium hydroxide is basic in nature, it will turn red litmus paper blue while it has no effect on blue litmus paper.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 6

If a cone and a sphere have equal radii and equal volumes, then the ratio between the diameter of the sphere and height of the cone is

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 6

TN TET Paper 2: Science and Mathematics Test - 10 - Question 7

The HCF of 1683, 2244 and 5049 is x. The sum of digits of x is

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 7

Given:
The HCF of 1683, 2244 and 5049 is x.
Concept used:
HCF - The greatest number which divides each of the two or more numbers
Calculation:
⇒ 1683 = 3 × 3 × 11 × 17
⇒ 2244 = 2 × 2 × 3 × 11 × 17
⇒ 5049 = 3 × 3 × 3 × 11 × 17
The HCF = (3 × 11 × 17)
⇒ 561
So,
⇒ x = 561
Now,
The sum of digits of x = (5 + 6 + 1)
⇒ 12
∴ The required sum of digits of x is 12.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 8

Substance X is used as window cleaner and is basic in nature, while Y is an acid found in grapes. Identify the substances X and Y.

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 8

Acid and Base

  • X - Ammonium hydroxide, Y - Tartaric acid is the correct option. 
  • Ammonium hydroxide is used as a window cleaner. 
  • In grapes, tartaric acid is formed. 
  • Potassium hydroxide is used for making soaps. 
  • Oxalic acid is found in spinach. 
TN TET Paper 2: Science and Mathematics Test - 10 - Question 9

A man, standing between two cliffs, claps his hands and starts hearing a series of echoes at intervals of one second. If the speed of sound in air is 340 ms-1, the distance between the cliffs is _______

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 9

Echo is the acoustical phenomena in which there occurs a repetition of sound which is caused by the reflection of sound waves from an obstacle is known as echo

  • For in order to occur echo the distance between the obstacle and sound source must be 17.2 m.
TN TET Paper 2: Science and Mathematics Test - 10 - Question 10

If the present age of a father is 42 years and that of his son is 12 years, then what was the ratio of their ages two years ago?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 10

Age of father two years ago = 42 - 2 = 40 years
Age of son two years ago = 12 - 2 = 10 years
Ratio of ages of father and son = 40 : 10 = 4 : 1

TN TET Paper 2: Science and Mathematics Test - 10 - Question 11

If the energy available to the plants from the sun is 20,000 J, then what would be the energy available to the lion in the food chain, Plant → Dear → Lion?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 11

Lindemann (1942) put forth ten percent law for the transfer of energy from one trophic level to the next.Plants utilise sun energy for primary production and can store only 10% of the utilised energy as net production available for the herbivores. When the plants are consumed by animals, about 10% of the energy in the food is fixed into animal flesh which is available for the next trophic level (carnivores). When a carnivore consumes that animal, only about 10% of energy is fixed in its flesh for the higher level.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 12

If you carefully dig a grass plant and observe its roots and leaves you will find that it has

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 12

A grass plant has fibrous roots and parallel venation.
Roots: All grasses have fibrous roots. These roots extend into the soil from base of the plant.
Leaves: Grass leaves have parallel venation. In this venation, veins run parallel to one another down the length of the leaf.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 13

One bell rings for every 6 minutes. Another bell rings every 8 minutes. The third bell rings every 9 minutes. After how many minutes all the three bells will ring together?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 13

Given:
One bell rings every 6 minutes. Another bell rings every 8 minutes. The third bell rings every 9 minutes. 
Concept used:
LCM is the smallest common multiple of two or more numbers.
Calculation:
Now, the three bells will ring together after
⇒ LCM (6, 8, 9)
⇒ 23 × 32
⇒ 8 × 9
⇒ 72 minutes
∴ The three bells will ring together after 72 minutes.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 14

Match the columns.

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 14

The correct answer is i - d, ii - c, iii - b, iv - a

Plant Cell

  • The cell wall in plant cells is made up of cellulose, a carbohydrate.
  • The plant cell wall is an elaborate extracellular matrix that encloses each cell in a plant.
  • It was the thick cell walls of cork, visible in a primitive microscope, that in 1663 enabled Robert Hooke to distinguish and name cells for the first time.
  • The walls of neighboring plant cells, cemented together to form the intact plant, are generally thicker, stronger, and, most important of all, more rigid than the extracellular matrix produced by animal cells.

 Animal Cell

  • Desmosomes are one of the stronger cell-to-cell adhesion types and are found in tissue that experience intense mechanical stress, such as cardiac muscle tissue, bladder tissue, gastrointestinal mucosa, and epithelia.
  • Animal cells simply have a cell membrane, but no cell wall.

 Bacterial cell walls

  • Bacterial cell walls are made of peptidoglycan also called as murein, which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids.

Fungal cell

  • The cell wall is a characteristic structure of fungi and is composed mainly of glucans, chitin and glycoproteins.
TN TET Paper 2: Science and Mathematics Test - 10 - Question 15

The Planet that lies at the outermost orbit of the Solar System is:

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 15
  • The Solar System's farthest planet known as Neptune is located eight planets from the Sun.
  • It is the third-most massive, densest, and fourth-largest planet in the Solar System in terms of diameter.
  • Its mass is 17 times that of the Earth.
  • Being composed primarily of gases and liquids, it has no well-defined solid surface.
  • The planet travels 30.1 astronomical units around the Sun on average during each of its 164.8-year cycles.
  • It has the name of the sea god in Roman mythology.
TN TET Paper 2: Science and Mathematics Test - 10 - Question 16

A sum of money amounts to Rs. 4,818 after 3 years and Rs. 7,227 after 6 years on compound Interest. The sum is:

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 16

For 3 years, P(1 + R/100)3 = 4,818 ...(i)
For next 3 years, 4,818(1 + R/100)3 = 7,227 ...(ii)
Using value of (1 + R/100)3 from eq. (i) in eq. (ii) and solving for P, we get
P = Rs. 3,212
Rs. = 3,212

TN TET Paper 2: Science and Mathematics Test - 10 - Question 17

Which of the following acids is/are present in acid rain?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 17

In the gas phase, sulphur dioxide is oxidised by reaction with the hydroxyl radical via an intermolecular reaction:
SO2 + OH. → HOSO2·
which is followed by:
HOSO + O2 → HO2· + SO3
In the presence of water, sulphur trioxide (SO3) is converted rapidly into sulphuric acid:
SO3 (g) + H2O (l) → H2SO4 (aq)
Nitrogen dioxide reacts with OH to form nitric acid:
NO2 + OH· → HNO3

TN TET Paper 2: Science and Mathematics Test - 10 - Question 18

Which of the following pairs is related to the inheritance of characters?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 18

Heredity is a term that refers to traits and features that are inherited from one's parents and ancestors. At birth, a person inherits 50% of each parent's genetic material (genes) that are passed along through the chromosomes found in the DNA. DNA (deoxyribonucleic acid) is the cell's genetic material, contained in chromosomes within the cell nucleus and mitochondria. A chromosome contains many genes.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 19

For which kind of problem in mathematics the method of analysis and synthesis is applied?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 19

Method of analysis and synthesis is applied for such problems in mathematics where ‘if-then’ type of logic is needed (If a triangle is isosceles, then prove that the measures of the angles opposite to the sides of equal length are equal). In such problems, some conditions (hypotheses) are given and under those conditions, some relationships have to be proved. In proving geometric relationships, and algebraic identities and in solving algebraic problems this method can be effectively used.
Synthetic Method: The word “synthetic’ is derived from the word ‘synthesis which means to combine. In this method, we combine several facts, perform cer­tain mathematical operations, and arrive at the solution. In this method, we start with the known data and connect it with the unknown part.
It is the process of putting together known bits of information to reach the point where unknown information becomes obvious and true. Thus in this method, we proceed from hypothesis to conclusion.
It is lead from:

  • Known to Unknown
  • Hypothesis to Conclusion
  • Concrete to Abstract 
  • Simple to Complex

The Analytical Method is a generic process combining the power of the Scientific Method with the use of a formal process to solve any type of problem. Analysis means breaking up into components.

  • The use of the Analytical Method is critical to solving the sustainability problem because it appears that current processes are inadequate.
  • They are intuitive, simple, and based on how activists approach everyday problems. 
  • All scientifically based problem-solving approaches use the analytical method.
  • It leads from conclusion to hypothesis.
  • It proceeds from unknown to known. (opposite of synthetic method)

Hence, we can conclude that If and then kind of problem in mathematics the method of analysis and synthesis is applied.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 20

Which one of the following fuels has the maximum calorific value?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 20

We know that heat is produced when fuels are burnt. The amount of heat produced by burning or combustion of 1Kg of fuel is expressed in terms of calorific value. 

  • It is also known as energy value or heat of combustion.
  • It is measured in units of energy per amount of material, e.g. KJ/g or kJ/kg, where KJ is Kilo Joules.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 21

"Scientific knowledge is subject to change" This given statement gives which aspect of the nature of science?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 21

Science learners need to know not only facts/concepts but also about the processes through which this knowledge is generated. Aspects of Nature of Science:

  • Scientific knowledge is long-lasting yet tentative, that is Scientific knowledge is subject to change because we make new observations and tend to reinterpret the existing observations.
  • Empirical evidence is used to refine and support ideas in Science
  • Social and historical factors play a role in the construction of scientific knowledge
  • Laws and theories play a central role in developing scientific knowledge, yet they have different functions
  • Accurate record-keeping, peer review, and replication of experiments help to validate scientific ideas
  • Science is a creative endeavor
  • Science and Technology are not the same, but they have an impact on each other.

Hence, it can be concluded that the statement "Scientific knowledge is subject to change" means Scientific knowledge is long-lasting yet tentative.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 22

Chhaya simplified the given rational number.
This error can be considered as

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 22

The student thought that the negative sign will still be there and not get divided.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 23

Which of the following does not reflect the personality attribute of a person having scientific temper?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 23

Biased opinion does not reflect the personality attribute of a person having scientific temper.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 24

To analyse the level of questions of a question paper of a Scholastic Achievement Test, useful indices for evaluation are

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 24

Difficulty index is a measure of the proportion of examinees who answered the item correctly; for this reason it is frequently called the p-value. Item discrimination is the degree to which students with high overall exam scores also got a particular item correct. These two indices are used in evaluation of questions in SAT.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 25

Giving open-ended tasks in mathematics

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 25

School mathematics has to be in close relation to the social worlds of children where they are engaged in mathematical activities as a part of daily life.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 26

Rusting of Iron is a ________

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 26
  • Chemical change occurs when their is a change in the chemical properties of a matter.
    • When 2 or more reactants react they produce a compund having a different chemical composition.
  • When iron rusts it reacts with the oxygen and water in the air to form it's hydroxide.
    • the brown coloured rust is the hydroxide of iron (Fe(OH)3).
    • Reaction is -  4Fe + 3O2 + 6H2O → 4Fe(OH)3
TN TET Paper 2: Science and Mathematics Test - 10 - Question 27

In _______ all the cues provided by teacher while teaching, the deductive thinking where in abstract content is differentiated by the teacher giving appropriate examples to the students.

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 27

The expository Approach is also known as the Transmission Approach. In this approach, the teacher is communicating maximum information to the students in a minimum of time. This approach helps the teacher to
cover the content to be taught to the students. This approach is widely used across all subjects and different levels of education by the teacher. The main proponent of this method is David P. Ausubel.
In the expository approach all the cues provided by the teacher while teaching, the deductive thinking wherein abstract content is differentiated by the teacher giving appropriate examples to the students. The teaching Learning process is totally controlled by the teacher.
Note that:

  • In Discovery Approach some cues in the form of learning material are presented by the teacher to the students and using Inductive thinking, the students are expected to discover the concept or the generalization/rule. Therefore the teaching-learning process is partially controlled by the teacher and students are also involved to a great extent. 
  • In an Inquiry approach, the students are given a problem or a discrepant event. The students will ask the teacher questions to collect the data and they through interaction find out a satisfactory solution to a given problem or explanation of the given discrepant event. In this approach, the teaching-learning process is totally controlled by the students.
TN TET Paper 2: Science and Mathematics Test - 10 - Question 28

Which is the most appropriate problem solving strategy in a constructivist Mathematics classroom?

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 28

Constructivist teaching is based on the belief that the teacher facilitates a process of learning in which students are encouraged to be responsible and autonomous.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 29

In order to enhance the self-esteem of students, they should be allowed to

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 29

In order to enhance the self-esteem of students, they should be allowed to take part in discussions and debates.

TN TET Paper 2: Science and Mathematics Test - 10 - Question 30

You have two test tubes 'A' and 'B'. Test tube 'A' contains paste of turmeric, whereas test tube 'B' contains aqueous solution of phenolphthalein. On adding a few drops of dilute hydrochloric acid to these test tubes, the contents of

Detailed Solution for TN TET Paper 2: Science and Mathematics Test - 10 - Question 30

Being an acid, hydrochloric acid does not change the colour of turmeric indicator, as acids do not change the colour of turmeric indicator. Also, phenolphthalein indicator would remain colourless in acids.

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