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variable control MCQ Questions for Class 9

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3 questions tagged with variable control.

Question 1/3 Hard Art Education Painting Techniques Colour filling and blending Class 9 Level 95

रंग भरने के अभ्यास में दबाव का प्रभाव जांचना हो तो उचित प्रयोग कौन-सा है?

Which is the correct experiment for studying the effect of pressure in colour filling?

Explanation opens after your attempt
Correct Answer

A. ब्रश रंग नमी और गति समान रखकर केवल दबाव बदलनाKeep brush colour moisture and speed constant while changing only pressure

Step 1

Concept

Changing one variable at a time makes its effect clear. Remember the principle of controlled practice in exams.

Step 2

Why this answer is correct

The correct answer is A. ब्रश रंग नमी और गति समान रखकर केवल दबाव बदलना / Keep brush colour moisture and speed constant while changing only pressure. Changing one variable at a time makes its effect clear. Remember the principle of controlled practice in exams.

Step 3

Exam Tip

एक समय में एक चर बदलने से उसका प्रभाव स्पष्ट होता है। परीक्षा में नियंत्रित अभ्यास का सिद्धांत याद रखें।

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Question 2/3 Expert Art Education Painting Techniques Brush techniques Class 9 Level 93

किस प्रयोग से ब्रश दबाव के प्रभाव का निष्पक्ष अध्ययन किया जा सकता है?

Which experiment can fairly study the effect of brush pressure?

Explanation opens after your attempt
Correct Answer

C. ब्रश रंग नमी और गति समान रखकर केवल दबाव बदलनाKeep brush paint moisture and speed constant while changing only pressure

Step 1

Concept

Changing only one variable makes the effect of pressure clearly identifiable. Remember the principle of a controlled experiment in exams.

Step 2

Why this answer is correct

The correct answer is C. ब्रश रंग नमी और गति समान रखकर केवल दबाव बदलना / Keep brush paint moisture and speed constant while changing only pressure. Changing only one variable makes the effect of pressure clearly identifiable. Remember the principle of a controlled experiment in exams.

Step 3

Exam Tip

केवल एक चर बदलने से दबाव का प्रभाव स्पष्ट रूप से पहचाना जा सकता है। परीक्षा में नियंत्रित प्रयोग का सिद्धांत याद रखें।

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Question 3/3 Hard Art Education Painting Techniques Brush techniques Class 9 Level 93

ब्रश अभ्यास में एक साथ दबाव कोण गति और नमी बदलने से सीखना कठिन क्यों होता है?

Why is learning difficult when pressure angle speed and moisture are changed simultaneously during brush practice?

Explanation opens after your attempt
Correct Answer

A. किस परिवर्तन से कौन-सा प्रभाव बना यह स्पष्ट नहीं रहताIt becomes unclear which change produced which effect

Step 1

Concept

Changing several factors together makes cause and effect difficult to identify. Change one factor at a time during exam practice.

Step 2

Why this answer is correct

The correct answer is A. किस परिवर्तन से कौन-सा प्रभाव बना यह स्पष्ट नहीं रहता / It becomes unclear which change produced which effect. Changing several factors together makes cause and effect difficult to identify. Change one factor at a time during exam practice.

Step 3

Exam Tip

एक साथ कई कारक बदलने से कारण और परिणाम की पहचान कठिन होती है। परीक्षा अभ्यास में एक समय पर एक कारक बदलें।

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