NCERT Books for Class 11 Introduction to Psychology PDF Download

NCERT Books for Class 11 Introduction to Psychology PDF Download

NCERT Books Class 11 Introduction to Psychology: The National Council of Educational Research and Training (NCERT) publishes Introduction to Psychology textbooks for Class 11. The NCERT Class 11th Introduction to Psychology textbooks are well known for it’s updated and thoroughly revised syllabus. The NCERT Introduction to Psychology Books are based on the latest exam pattern and CBSE syllabus.

NCERT keeps on updating the Introduction to Psychology books with the help of the latest question papers of each year. The Class 11 Introduction to Psychology books of NCERT are very well known for its presentation. The use of NCERT Books Class 11 Introduction to Psychology is not only suitable for studying the regular syllabus of various boards but it can also be useful for the candidates appearing for various competitive exams, Engineering Entrance Exams, and Olympiads.

NCERT Class 11 Introduction to Psychology Books in English PDF Download

NCERT Class 11 Introduction to Psychology Books are provided in PDF form so that students can access it at any time anywhere. Class 11 NCERT Introduction to Psychology Books are created by the best professors who are experts in Introduction to Psychology and have good knowledge in the subject.

NCERT Books for Class 11 Introduction to Psychology – English Medium

NCERT Introduction to Psychology Books for Class 11 – PDF Download

The NCERT syllabus mainly focuses on this book to make it student-friendly to make it useful for both the students and the competitive exam aspirants. The book covers a detailed Introduction to Psychology based on the syllabuses of various boards. NCERT Introduction to Psychology Books for Class 11 is perfectly compatible with almost every Indian education state and central boards.

We hope that this detailed article on NCERT Books Class 11 Introduction to Psychology helps you in your preparation and you crack the Class 11 exams or competitive exams with excellent scores.

NCERT Solutions for Class 9 Social Science Economics Chapter 1 The Story of Village Palampur

NCERT Solutions for Class 9 Social Science Economics Chapter 1 The Story of Village Palampur

Textbook Exercises

Question 1.
The following table 1.1 shows the and under cultivation in India in units of million Hectares. Plot this on the graph provided. What does the graph show? Discuss in class.
Table 1.1

Cultivated Area
1950 120
1960 130
1970 140
1980 140
1990 140
2000 140

NCERT Solutions for Class 9 Social Science Economics Chapter 1 The Story of Village Palampur 1
(i) Is it important to increase the area under irrigation why?
(ii) You have read about the crops grown in Palampur. Fill the following table based on information on the crops grown in your region.
NCERT Solutions for Class 9 Social Science Economics Chapter 1 The Story of Village Palampur 2
Answer:
(i) The land available for cultivation is practically fixed. Therefore, to grow more from the same land is the only way of increasing production. To grow more from the same land is possible only through well developed irrigation. Therefore it is important to increase area under irrigation.

(ii) Students are required to do it themselves.

(i) What is the difference between multiple cropping and modem farming method,
Answer:
Difference between multiple cropping and modern farming:
1. Multiple cropping—To grow more than one corp on a piece of land during the year is known as multiple cropping. Different crops are grown in different seasons on the same land. For growing more than one crop in a year on the same land a well developed irrigation system is necessary.

2. Modem methods of fanning—The other way of increasing production is to use modern farming methods for higher yield. This can be done by using high yielding variety of seeds. These seeds need good irrigation system, chemical fertilizers, and pesticides. Farm machines like tractors and threshers, make ploughing and harvesting faster.

(ii) The following table shows the production of wheat and pulses in India after the green revolution in units of million tonnes. Plot this on a graph. Was the green revolution equally successful for both the crops discuss.

Production of pulses Production of wheat
1965-66 10 10
1960- 71 12 24
1980-81 11 36
1990-91 14 55
2000-01 11 70

Answer:
The green revolution is not equally successful for both the crops. Whereas production, of wheat has increased manifold over the years but production of pulses is- almost stable. Production of pulses has increased form 10 to 11 between the years 1965 to 2001. But that of wheat has increased from 10 to 70 between the years 1965 to 2001.

(iii) What is the working capital required by the former using modern farming methods?
Answer:
The working capital required by the farmer using modem farming methods is HYV seeds, chemical fertilizers and pesticides.

(iv) Modem fanning methods require the farmer to start with more cash than before why?
Answer:
The working capital required by the farmer using modem farming method is chemical fertilizers, pesticides and HYV seeds. Also they require good irrigation system.

The HYV seeds, chemical fertilizers and pesticides are prepared in industries and therefore are costlier than traditional seeds and natural fertilizers. For developing a good irrigation system a farmer needs to get electric-run tubewells and electricity connection. For these he has to pay charges. Also, some of the farmers buy farm machinery like, tractors and tubewells which make ploughing and harvesting faster. For all the above mentioned things a farmer requires good cash. Therefore, we can say that modern farming methods require the farmer to start with more cash than before.

Activity 1

During your field visit talk to some farmers of your region. Find out:
1. What kind of fanning methods—modern or traditional or mixed—do the farmers use. Write a note.
2. What are the sources of irrigation?
3. How much of the cultivated land is irrigated? (Very little/nearly half/majority/all).
4. From where do farmers obtain the inputs that they require?
Answer:
Students are required to do it themselves.

Activity 2

After reading the following reports from newspapers/ magazines, write a letter to the Agriculture Minister in your own words telling him how the use of chemical fertizliers can be harmful.

….Chemical ferdizliers provide, minerals which dissolve in water and are immediately available to plants. But these may not be retained in the soil for long. They may escape from the soil and pollute ground water, rivers and lakes, chemical fertilizers can also kill bacteria and other microorganisms in the oil. This means some time after their use, the soil will be less fertile than over before (Source Down to Earth, New Delhi).

…….The consumption of chemical ferdizliers in Punjab is highest in the country. The continuous use of chemical fertilizers, has led to degradation of soil health. Punjab farmers are now forced to use more and more chemical fertizliers and other inputs to achieve the same production level. This means cost of cultivation is rising very fast……(Source: The Tribune, Chandigarh)
Answer:
To;
The Agriculture Minister
Dept, of agriculture
New Delhi
Sir/Madam,
Sub : The effects of chemical fertilizers

This letter is to divert your attention to the ill effects of chemical fertilisers on our health and soil fertility. To* grow more from the same land farmers use these fertilizers in very high quantity without realizing its effects. These fertilizers escape from the soil and pollute ground water, rivers and lakes. When we drink this polluted water it effects our health. Also, these chemical fertilisers kill bacteria and other micro-organisms in the soil. It effects the fertility of soil. The continuous use of chemical fertilisers has led to the degradation of soil health. The farmers are now forced to use more and more chemical fertilisers and other inputs to achieve the same production level. This has increased the cost of production as a result the prices of crops have increased.

As chemical fertilisers are harmful for our environment and health government should restrict their use. It should encourage farmers to use bio fetilisers and manure.

I hope the ministry concerned will pay attention to it.

Thanking you
Yours Sincerely
X.Y.Z.

These Solutions are part of NCERT Solutions for Class 9 Social Science. Here we have given NCERT Solutions for Class 9 Social Science Economics Chapter 1 The Story of Village Palampur.

MCQs on First Law of Thermodynamics and Hess Law

MCQs on First Law of Thermodynamics and Hess Law for NEET

NEET  Chemistry is the scoring paper in the medical entrance examination. Here, you will discover the NEET Chemistry MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Chemistry objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Chemistry First Law of Thermodynamics and Hess Law Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on First Law of Thermodynamics and Hess Law

1. The variations in enthalpy that can not be detected per calorimeter can be detected with the aid of
(a) Newton’s law
(b) Hess’s law
(c) Krebs law
(d) Ohm’s law

Answer

Answer: (b)


2. The energy required to sever a given covalent bond is named
(a) bond energy
(b) bond enthalpy
(c) bond dissociation energy
(d) all of above

Answer

Answer: (d)


3. Changes in enthalpy in an exothermic reaction is
(a) positive
(b) negative
(c) constant
(d) neutral

Answer

Answer: (b)


4. The first law of thermodynamics states that energy can not be
(a) created only
(b) destroyed only
(c) converted
(d) created and destroyed

Answer

Answer: (d)


5. Hess’s law states that a chemical reaction is independent of the route by which chemical reactions takes place while keeping the same
(a) initial conditions only
(b) final conditions only
(c) mid-conditions
(d) initial and final conditions

Answer

Answer: (d)


6. The standard enthalpy change of neutralization involves the reaction of an acid with an alkali to form 1 mol of
(a) water
(b) oxygen
(c) nitrogen
(d) anhydrous salt

Answer

Answer: (a)


7. The change in the energy between a chemical reaction and the surroundings at constant temperature is called
(a) enthalpy change
(b) enthalpy
(c) enthalpy profile
(d) dynamic enthalpy

Answer

Answer: (a)


8. To initiate a reaction the minimum energy which is required to break bonds is called
(a) bond energy
(b) activation energy
(c) breaking energy
(d) ionization energy

Answer

Answer: (a)


9. The standard condition for enthalpy changes are
(a) the pressure of 100 kPa
(b) temperature 298K
(c) normal physical state
(d) all of above

Answer

Answer: (d)


10. The application of law of thermodynamics to the enthalpy change was done by
(a) Newton
(b) Hess’s
(c) Lewis
(d) Sophocles

Answer

Answer: (b)


MCQs On Hydrogen

MCQs On Hydrogen for NEET

NEET  Chemistry is the scoring paper in the medical entrance examination. Here, you will discover the NEET Chemistry MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Chemistry objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Chemistry Hydrogen Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on Hydrogen

1. Electrolysis of brine produces
(a) chlorine gas
(b) hydrogen gas
(c) sodium hydroxide
(d) all the above

Answer

Answer: (d)


2. A reactant containing the element that is oxidised is called
(a) reducing agent
(b) oxidising agent
(c) hydrogen
(d) sublime

Answer

Answer: (a)


3. By losing one or two electrons the atoms of metal are
(a) oxidised
(b) reduced
(c) hydrogenated
(d) sublimated

Answer

Answer: (a)


4. Electrolytes conduct electricity in
(a) solid state
(b) liquid state
(c) gaseous state
(d) plasma state

Answer

Answer: (b)


5. Loss of hydrogen atoms by an element is called
(a) hydrogenation
(b) oxidation
(c) reduction
(d) sublimation

Answer

Answer: (b)


6. The electrolyte among the following is
(a) NaOH
(b) Urea
(c) glucose
(d) benzene

Answer

Answer: (a)


7. O-O-H bond angle in H2O2 is
(a) 97°
(b) 106°
(c) 120°
(d) 109°28′

Answer

Answer: (a)


8. Which of the following is very high for proton?
(a) radius
(b) ionization potential
(c) charge
(d) hydration energy

Answer

Answer: (d)


9. The list which contains only elements is
(a) air, water, oxygen
(b) hydrogen, oxygen, brass
(c) air, water, fire, earth
(d) calcium, sulphur, carbon

Answer

Answer: (d)


10. The smallest part of an element that cannot exist as a free state is
(a) ion
(b) charge
(c) atom
(d) molecule

Answer

Answer: (c)


NCERT Class 3 Hindi Rimjhim Book PDF Download [Updated 2023-24]

NCERT Books for Class 3 Hindi Rimjhim PDF Download

Download NCERT Books for Class 3 Hindi Rimjhim as per the Latest CBSE Syllabus 2021-22. Study from NCERT Class 3 Hindi Notes & score well in exams.

Rimjhim Class 3 NCERT Book PDF Download

Rimjhim–रिमझिम Class 3 Complete Book Zip Download

MCQs on 2nd and 3rd Law of Thermodynamics and Entropy

MCQs on 2nd and 3rd Law of Thermodynamics and Entropy for NEET

NEET  Chemistry is the scoring paper in the medical entrance examination. Here, you will discover the NEET Chemistry MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Chemistry objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Chemistry 2nd and 3rd Law of Thermodynamics and Entropy Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on 2nd and 3rd Law of Thermodynamics and Entropy

1. Which of the following processes is used to do maximum work done on the ideal gas that is compressed to half of its initial volume?
(a) isothermal
(b) isochoric
(c) isobaric
(d) adiabatic

Answer

Answer: (d)


2. What is the ratio of Cp/Cv for gas if the pressure of the gas is proportional to the cube of its temperature and the process is an adiabatic process?
(a) 2
(b) 3/2
(c) 4/3
(d) 5/3

Answer

Answer: (b)


3. The coefficient performance of a refrigerator is 5. Calculate the heat rejected to the surrounding if the temperature inside the freezer is -20oC
(a) 11oC
(b) 41oC
(c) 21oC
(d) 31oC

Answer

Answer: (d)


4. What is a necessary condition for a reaction to be spontaneous at all temperatures?
(a) 𐤃H < 𐤃G
(b) 𐤃G and H should be positive
(c) 𐤃H = 𐤃G = 0
(d) 𐤃G and 𐤃H should be negative

Answer

Answer: (d)


5. Which of the following factor affects the heat of reaction based on Kirchhoff equation?
(a) molecularity
(b) temperature
(c) pressure
(d) volume

Answer

Answer: (b)


6. Chemical dissociation is
(a) exothermic
(b) reversible
(c) endothermic
(d) reversible and endothermic

Answer

Answer: (d)


7. Which of the following is the largest unit of energy?
(a) electron volt
(b) joule
(c) calorie
(d) erg

Answer

Answer: (c)


8. A perfect black body has a unique characteristic feature as
(a) a good absorber only
(b) a good radiator
(c) a good absorber and a good radiator
(d) neither a radiator nor an absorber

Answer

Answer: (c)


9. A thermodynamic process where no heat is exchanged with the surroundings is
(a) isothermal
(b) adiabatic
(c) isobaric
(d) isotropic

Answer

Answer: (b)


10. Which of the following laws was formulated by Nernst?
(a) First law of thermodynamics
(b) Second law of thermodynamics
(c) Third law of thermodynamics
(d) None of the above

Answer

Answer: (c)