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brush experiment MCQ Questions for Class 9

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2 questions tagged with brush experiment.

Question 1/2 Expert Art Education Painting Techniques Brush techniques Class 9 Level 93

एक कलाकार ने तीन अभ्यास नमूनों में दबाव अलग रखा लेकिन प्रत्येक में अलग ब्रश भी लिया। निष्कर्ष अविश्वसनीय क्यों है?

An artist varied pressure in three practice samples but also used a different brush in each. Why is the conclusion unreliable?

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Correct Answer

C. ब्रश का आकार और बाल भी परिणाम बदलते हैं इसलिए दबाव का स्वतंत्र प्रभाव ज्ञात नहीं होताBrush shape and bristles also change the result so the independent effect of pressure is unknown

Step 1

Concept

When more than one variable changes the cause cannot be isolated. Keep other factors constant for a controlled comparison in exams.

Step 2

Why this answer is correct

The correct answer is C. ब्रश का आकार और बाल भी परिणाम बदलते हैं इसलिए दबाव का स्वतंत्र प्रभाव ज्ञात नहीं होता / Brush shape and bristles also change the result so the independent effect of pressure is unknown. When more than one variable changes the cause cannot be isolated. Keep other factors constant for a controlled comparison in exams.

Step 3

Exam Tip

एक से अधिक चर बदलने पर कारण निश्चित नहीं किया जा सकता। परीक्षा में नियंत्रित तुलना के लिए बाकी कारक समान रखें।

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

ब्रश अभ्यास में केवल परिणाम दर्ज किए गए लेकिन दबाव नमी और कोण नहीं लिखे गए। इससे विश्लेषण में क्या कठिनाई होगी?

Only the results were recorded in brush practice but pressure moisture and angle were not noted. What analytical difficulty will arise?

Explanation opens after your attempt
Correct Answer

B. किस कारक से कौन-सा प्रभाव बना यह निश्चित नहीं किया जा सकेगाIt will be impossible to determine which factor produced each effect

Step 1

Concept

Without recording the process the relation between cause and effect remains unclear. Note each variable during exam practice.

Step 2

Why this answer is correct

The correct answer is B. किस कारक से कौन-सा प्रभाव बना यह निश्चित नहीं किया जा सकेगा / It will be impossible to determine which factor produced each effect. Without recording the process the relation between cause and effect remains unclear. Note each variable during exam practice.

Step 3

Exam Tip

परिणाम के साथ प्रक्रिया दर्ज न होने पर कारण और प्रभाव का संबंध अस्पष्ट रहता है। परीक्षा अभ्यास में प्रत्येक चर लिखें।

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