NIOS CLASS 10TH Science and Technology (212) SOLVED TMA In English Medium PDF SESSION 2023 - 24

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NIOS CLASS 10TH Science and Technology (212) SOLVED TMA In English Medium PDF SESSION 2023 - 24

Which is Applicable for March/April & October/November 2024 Examination.

This platform provides Nios Science and Technology (212) TMA Solved with project work for class 12th. Here you can Get Nios Solved Tutor Mark Assignment (TMA) in Good Quality which helps to achieve More and More Marks. Nios Assignment’s Answer Prepared by well Skilled and Experienced Teachers.

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➛➛ Best Answer in PDF Format of NIOS TMA.
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➛ Answers are available in English Medium.
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Note -

➛ Total six questions are given by Nios in TMA. All questions have 2 options out of which one has to be selected. In this PDF, we have given you the answer of one option which is better so that your marks will be good.

➛ You have to write the question and answer on the A4 size sheet as given in this PDF.

➛ After writing, the page has to be scanned and made a PDF and upload on the portal of NIOS.

TMA Questions

1. Answer any one of the following questions in about 40 - 60 words.
(a) In the diagram shown alongside the displacement- position graph of a wave generated at O is shown after 0.1s. Calculate:
(i) Amplitude of the wave
(ii) Wave length
(iii) Frequency of the wave
(iv) Velocity of the wave

b) You can join resistances in different ways to obtain resistances of different values.
You are given three resistances of 3 ohm each. Draw diagrams to show their different
combinations. Also, calculate the equivalent resistance of each combination.

2.Answer any one of the following questions in about 40 - 60 words.

a) Calculate the amount of heat required to convert 100g of ice at – 400C into steam at 1000C

Given: Latent heat of fusion of ice =335 J/g
Latest heat of vaporization of water = 2260 J/g
Specific heat capacity of ice = 2.1 J/gx0C
Specific heat capacity of water = 4.2 J/gx0c)

b) Hydrogen and oxygen combine in the ratio of 1: 8 by mass to form water. What mass of
oxygen gas would be required to react completely with 3 g of hydrogen gas ?

3.Answer anyone of the following questions in about 40-60 words.

a) Draw a labelled Diagram of a plant cell. Mention any three differences between a
plant cell and an animal cell.

b) Name the causative agent and describe the mode of transmission of Malaria. What are the symptoms of this disease? List any four preventive measures for controlling spread of Malaria.

4.Answer any one of the following questions in about 100 - 150 words.
a)The position of a moving body at various instants of time is tabulated below:
Draw a position-time graph for the motion. What type of motion does it depict? Describe the
motion giving its 3 special features in numerical terms.

b)The following diagram displays a chemical reaction. Observe carefully and answer the following questions
(i) Identify the type of chemical reaction that will take place and define it. How will the colour of the salt change?
(ii) Write the chemical equation of the reaction that takes place.

Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it, as shown in the figure.

5. Answer any one of the following questions in about 100 - 150 words.

a) Draw ray diagrams showing image foundation by (i) a concave lens (ii) convex lens, in case the object is placed between focus and optical centre. Describe the characteristics of the
image formed in each case.

b) Given below are the names of some animals. Identify two animals each showing
Also Name the phylum/class of each of them;
(Shark, round worm, Snake, jelly fish, tape worm, starfish)
(i) Radial symmetry
(ii) Body covered with scales
(iii) Parasitic mode of life.

6.Prepare any one out of the Project given below:
(a) Answer the following:
A man went door-to door posing as a goldsmith. He promised to bring back the glitter of old
and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he
dipped in a particular solution. The bangles sparkled like new but their weight was reduced
drastically. The lady was upset but after a futile argument the man beat a hasty repeat. Can you play the detective to find out the nature of the solution he has used?

1) Gold is a very precious metal. Pure gold is very soft it is therefore not suitable for making
jewellery. It is alloyed with either Silver or Copper to make it hard. But sometimes jewellers mix a large quantity of copper and silver in gold to earn more profit.

a) What precautions should you take while purchasing gold jewellery?
b) Why does Government insist on purchasing Hall Marked jewellery?

2) Corrosion is a serious problem. Every year an enormous amount of money is spend to
replace damaged iron. What steps can be taken to prevent this damage.

3) Mercury is the only metal found in the liquid state. It is largely used in thermometers to
measure the temperature. But mercury is a very dangerous metal as its density is very
high. What two precautions you would take while handling the equipments containing
Mercury ?
(b) Make two cylindrical card board formers of diameter 1 inch and 2 inch and length 6inch closely wound coils using insulated copper wire taking out of tapping’s after 50 turns, 100 turns, 250 turns on each format. Now place a magnate needle at appropriate distance.

Take first coil. Connect its 50 turns across a battery and note the deflection of magnetic needle.
Repeat observations with 100 turns, 200 turns etc.

Make similar observations using the second coil.
Now insert 6 inch long iron nails inside the coil and repeat the experiment. Now answer the
following questions:
1. What is the effect of increasing number of turns on the strength of the electromagnet ?
2. What is the effect of increasing the area of cross-section on the strength of the
Electromagnet ?
3. What is the effect of using soft iron core on the strength of the electromagnet ?
4. What is the effect of increasingly current on the strength of electromagnet ?
5. Do the nails become magnet after some time ?

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