# Class 12 Logic And Philosophy Chapter – 3 Hypothesis

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## Class 12 Logic And Philosophy Chapter – 3 Hypothesis

Also, you can read SCERT book online in these sections Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. These solutions are part of SCERT All Subject Solutions. Here we have given Assam Board Class 12 Logic And Philosophy Chapter – 3 Hypothesis Solutions for All Subject, You can practice these here…

### Hypothesis

Unit-3

A) Very short type answers :- 1 Marks each.

1) There are how many stages of hypothesis ?

Ans:- there are four stages of hypothesis.

2) What are the different forms of hypothesis ?

Ans:- The four stages of a hypothesis are follows :-

i) Observation of facts.

ii) Formation of hypothesis or a supposition.

iii) Deduction and

iv) Verification.

3) The hypothesis must have for its object a real cause or –

Ans:- Vera causa.

4) What are the different forms of hypothesis according to Stebbing ?

And:- The three different forms of hypothesis according to Stebbing are :-

a) Explanatory hypothesis.

b) Descriptive hypothesis.

c) Analogical hypothesis.

5) “Hypothesis is a skilful guesswork, the first stage of discovery” – Do you agree ?

Ans:- Yes, I agree.

6) The hypothesis ‘Electricity is a fluid’ – is an example of what kind of hypothesis ?

Ans:- Working hypothesis.

7) “Hypothesis is always of provisional character” – is it true ?

Ans:- Yes, it is true.

8) What is the meaning of ‘Vera cause ?’

Ans:- True Cause.

9) The power of prediction is a – of legitimate hypothesis.

Ans:- Productivity.

10) In modern period according to whom hypothesis is of three kinds ?

Ans:- L. S. Stebbing.

11) Which is the first stage of hypothesis suggested by Mills definition of hypothesis ?

Ans:- “Observation of facts” is the first stage of hypothesis.

12) Which of the following expression is true ?

i) Hypothesis is the last stage of scientific investigation.

ii) Hypothesis makes observation and experiment impossible.

iii) Hypothesis is an aid to explanation.

Ans:- ii) Hypothesis makes observation and experiment impossible.

iii) Hypothesis is an aid to explanation.

These two are true expression.

13) State any one condition of a legitimate Hypothesis.

Ans:- One condition of a legitimate Hypothesis is – “The hypothesis must be relevant.

B) Short type answers :- 2 marks each.

1) Define Hypothesis.

Ans:- A hypothesis is an attempt at explanation a provisional supposition made in order to explain scientifically some fact or phenomenon.

2) Give an example of hypothesis concerning agent.

Ans:- A burglary is committed in a house. In order to know the Thief, we may frame a hypothesis as to the agent in question.

3) What are the four stages of a hypothesis ?

Ans:- There are four different stages of hypothesis :-

i) Observation of facts.

ii) Formation of hypothesis.

iii) Application of the deducative method and

iv) Verification.

4) What do you mean by working hypothesis ?

Ans:- Sometimes it may be that there is some phenomenon to be explained but it is of such an unfamiliar kind that we are not able to make any supposition at all as to its cause or law of operation. But some provisional supposition is necessary in order that we may study its nature and attributes. In such case we take the help of working hypothesis.

5) Define explanatory hypothesis.

Ans:- Every supposition of an antecedent circumstances as the real cause of the phenomenon in question, is called an explanatory hypothesis.

6) What is descriptive hypothesis ?

Ans:- Descriptive hypothesis describes the manner in which the phenomenon under investigation occurs. This kind of hypothesis is called descriptive hypothesis.

7) ‘Ovservation is the first stage of hypothesis’ – Why ?

Ans:- Observation of facts is the first stage of hypothesis. Because, observation presents before us some facts to be explained. Through observation we come in contact with the facts. As a result question arises in our mind about the event which call for explanation.

8) “Hypothesis should not conflict with established truths why ?

Ans:- Hypothesis should not conflict with established truths. Because, we should take into account the achievements of the past. Certain things have been established rather definitely, and novel suggestion, which contracts one of such well established laws, should be treated with suspicion. Knowledge is an organised system and its various parts are inter – related with one another.

9) What do you mean by Crucial Instance ?

Ans:- A crucial instance is an instance which can only be explained one of the contending hypothesis and not by the other. It may be obtained by simple observation or by experiment.

10) What are different types of verification of hypothesis ?

Ans:- Two different types of verification of hypothesis are :-

i) By direct observation or experiment.

ii) Indirect verification.

11) How many different forms does hypothesis assume according to the subject – matter about which suppositions are made and what are they ?

Ans:- There are three different forms of hypothesis according to the subject – matter about which suppositions are made.

They are :-

i) Hypothesis concerning Law.

ii) Hypothesis concerning Agent.

iii) Hypothesis concerning collocation.

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