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Units, Dimensions & Measurements Mock Test | 25 Important MCQs for Competitive Exams

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Sample Questions from Units, Dimensions & Measurements Mock Test | 25 Important MCQs for Competitive Exams

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Q1. What is the fundamental requirement for a measurement?

किसी मापन (Measurement) के लिए बुनियादी आवश्यकता क्या होती है?

A. Only Unit
केवल मात्रक

B. Only Magnitude (Numerical Value)
केवल परिमाण (संख्या)

C. Magnitude + Unit
परिमाण + मात्रक

D. Direction
केवल दिशा

Q2. Physical quantities are classified into Fundamental and Derived units based on which of the following?

भौतिक राशियों को किस आधार पर 'मूल मात्रक' और 'व्युत्पन्न मात्रक' में वर्गीकृत किया जाता है?

A. Direction and Magnitude
दिशा और परिमाण के आधार पर

B. Measurement and Unit
माप और इकाई के आधार पर

C. Availability
उपलब्धता के आधार पर

D. Temperature
तापमान के आधार पर

Q3. How many Fundamental Units (

मूल मात्रक) are there in Physics?भौतिकी (Physics) में मूल मात्रकों की कुल संख्या कितनी है?

A. 5
5

B. 7
7

C. 9
9

D. 12
12

Q4. Which of the following defines a 'Derived Unit' (

व्युत्पन्न मात्रक)?निम्नलिखित में से कौन 'व्युत्पन्न मात्रक' को परिभाषित करता है?

A. Units that are independent of other quantities
जो अन्य राशियों पर निर्भर नहीं करते

B. Units that depend on Fundamental Units
जो मूल राशियों पर निर्भर करते हैं

C. Units used only for direction
जो केवल दिशा के लिए उपयोग होते हैं

D. Supplementary units
संपूरक मात्रक

Q5. Radian is the supplementary unit used to measure which of the following?

रेडियन (Radian) का उपयोग निम्नलिखित में से किसे मापने के लिए किया जाता है?

A. Solid Angle (3
Solid Angle (3

B. / ठोस कोण
/ ठोस कोण

C. Plane Angle (2
Plane Angle (2

D. / समतल कोण
/ समतल कोण

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