AHSEC| CLASS 12| LOGIC & PHILOSOPHY| SOLVED PAPER - 2016| H.S. 2ND YEAR

AHSEC| CLASS 12| LOGIC & PHILOSOPHY| SOLVED PAPER - 2016| H.S. 2ND YEAR

2016
LOGIC AND PHILOSOPHY
Full Marks: 100
Pass Marks: 30
Time: Three hours
The figures in the margin indicate full marks for the questions.

 

1. (a) Which of the following statement is correct?

1)     Induction is concerned only with formal truth.

2)     Induction is a process of generalization.

3)     The conclusion of an induction follows necessarily from its premises.

Ans. Induction is process of generalization.

    (b) In which of the following kinds of Induction there is inductive leap.

1)     Perfect Induction.

2)     Analogy.

3)     Colligation of facts.

4)     Induction of parity of reasoning.

Ans. Analogy.

    (c) All men are ‘religious” – Is this proposition analytic or synthetic?

Ans: Synthetic.

    (d) “Cause and effect are events in time” – Is it quantitative mark of causation.

Ans: Yes.

    (e) Which of the following statement is correct?

1)     Experiment is finding a fact and observation is making one.

2)     In an experiment, one cannot pass from the effect to the cause.

3)     Observation succeeds experiment.

Ans. In an experiment, one cannot pass from the effect to cause.

    (f) Fill in the blank:

Mill’s paradox of induction is said to commit the fallacy of Post Hog Ergo Proter Hog.

    (g) Which of the following is correct?

1)     Direct verification of a hypothesis can be done by observation.

2)     Direct verification of a hypothesis can be done by observation or experiment.

3)     Direct verification of a hypothesis can be done by experiment only.

Ans: Direct verification of a hypothesis can be done by observation or experiment.

(h) Does the method of residues require pervious knowledge of the cause or effect for its application?

Ans:- Yes.

    (i) Name the experimental method which is based on the following canon:

    “Nothing is the cause of a phenomenon which is known to be the cause of a different phenomenon”

Ans: The Method of difference.

    (j) The method of agreement is a method of experiment and the method of difference is a method of observation” – Is it correct?

Ans: Correct.

    (k) Who did introduce the “theory of Pre-established harmony”?

Ans:  Gottfried Leibniz.

    (l) Who is regard as the father of modern philosophy?

Ans: Rene Descartes.

2. State any two similarities between Scientific Induction and Unscientific Induction.

Ans. Scientific induction established a general real proposition based on observation of particular instances reliance in the principle of uniformity of nature and law of causation. For example – All man are mortal.

          Unscientific induction establishment of general real proposition on the basis of merely uniform or uncontradicted experience without any attempt to explaining causal connection For example – All crows are black.

      The two similarities between scientific and unscientific induction are –

a)      Both scientific and unscientific induction established a general real proposition.

b)     Both scientific and unscientific based on observation of fact.

      The two dissimilarities between scientific and unscientific induction are –

a)      Scientific induction based on two kinds of observation that is simple observation and experiment. But unscientific induction based on only simple observation.

b)     The process of scientific induction is complex. But the process of unscientific induction is simple.

3. Define analogy with suitable example?

Ans. Analogy is a kind of inference in which on the basis of observation of resemblance in some particular properties between two things. Analogy does not conclusively prove a causal connection but is most fruitful source of hypothesis. When we find two things resemble each other in certain attributes we frame hypothesis that they will possible resemble each other.

      For example: We find that the Earth and the Planet mass resemble each other possessing similar kind of land, water atmosphere etc. suppose we find that the plant mass resemble earth in being inhabitant by living creatures.

4. Define efficient cause with an example?

Ans. Efficient Cause: The labour, skill energy spent in making a thing is called efficient cause. For example skill we over applies to the material in making cloth is the efficient cause of the effect.

5. Briefly explain positive condition with the help of a suitable example?

Ans. Condition means any necessary factor of cause. There are two types of condition –

1)   Positive condition.

2)   Negative condition.

Positive condition: The condition which helps to produce the effect is called positive condition. For example: A labour falls from the roof of a home and dies. The highnesses of the roof, hardness of the soil, get hurt in chest are the positive conditions. Because in presence these conditions event must be occur.

Negative condition: The condition which tends to prevent the effect is called negative condition. For example: A labour fall from the roof of a home and dies this physical strength, getting anybody’s help and his proper treatment are negative conditions. These negative condition must be absent in order that they effect may be produced.

6. What is crucial instance?

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

7. Briefly explain any one condition of a valid hypothesis with the help of a suitable example?

Ans: The hypothesis must be free from conflict with the establishment of truth. This means that the opposition should not violate a law for which we have positive evidence.

8. What do you mean by analogical hypothesis?

Ans. Analogical hypothesis means a hypothesis that what is true in one set of phenomenon may be true in the other set of phenomenon, both sets possess the common certain formal properties. For example: Maxwell established his electromagnetic theory on basis of resemblance between gravitation and electrostatics.

9. Why are the inductive method called ‘Method of Elimination’?

Ans. Elimination means exclusion of accidental circumstances. The inductive method is purely negative. They are concerned merely with exclusion of irrelevant and accidental circumstances. To prove a accidental circumstances may be brought out and determined. So the inductive method called the method of elimination.

10. What do you mean by realism?

Ans. Realism believes in the reality of external objects independent of the knowing mind. There are two forms of realism – Naïve realism and scientific realism.


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