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Science Exploration: Entering the World of Secondary Science MCQ Questions for Class 9

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Question 1/2 Easy Science 42 Exploration: Entering the World of Secondary Science Class 9 Level 6

किस अवलोकन में गंध का वर्णन है?

Which observation describes smell?

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Correct Answer

B. फूल की गंध तेज हैThe flower has a strong smell

Step 1

Concept

Smell is a qualitative observation obtained through the senses. Do not smell unknown substances directly.

Step 2

Why this answer is correct

The correct answer is B. फूल की गंध तेज है / The flower has a strong smell. Smell is a qualitative observation obtained through the senses. Do not smell unknown substances directly.

Step 3

Exam Tip

गंध इंद्रियों से प्राप्त गुणात्मक अवलोकन है। अज्ञात पदार्थों को सीधे न सूंघें।

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Question 2/2 Medium Science 42 Exploration: Entering the World of Secondary Science Class 9 Level 4

द्रव का आयतन मापने के लिए कौन सा उपकरण सबसे उचित है?

Which instrument is most suitable for measuring the volume of a liquid?

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Correct Answer

B. मापक सिलिंडरMeasuring cylinder

Step 1

Concept

A measuring cylinder measures liquid volume. Keep the eye level with the liquid surface while reading.

Step 2

Why this answer is correct

The correct answer is B. मापक सिलिंडर / Measuring cylinder. A measuring cylinder measures liquid volume. Keep the eye level with the liquid surface while reading.

Step 3

Exam Tip

मापक सिलिंडर द्रव का आयतन मापता है। मापन पढ़ते समय आंख को द्रव सतह के बराबर रखें।

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