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Question Expert Mathematics Number Systems Square root spiral Class 9 Level 20

यदि \(\sqrt{16}\) सर्पिल पर बना है, तो इसका वास्तविक संख्यात्मक मान क्या है?

If \(\sqrt{16}\) is constructed on the spiral, what is its actual numerical value?

Explanation opens after your attempt
Correct Answer

A. (4)

Step 1

Concept

\(\sqrt{16}=4\), so it is a rational length. Simplify square roots of perfect squares immediately.

Step 2

Why this answer is correct

The correct answer is A. (4). \(\sqrt{16}=4\), so it is a rational length. Simplify square roots of perfect squares immediately.

Step 3

Exam Tip

\(\sqrt{16}=4\), इसलिए यह एक परिमेय लंबाई है। पूर्ण वर्गों के वर्गमूल तुरंत सरल कर लें।

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AI Video Prompt 16:9 + 9:16

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Question Hard Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 64

( (a+b+c)2 ) में यदि (a+b+c=10) हो तो पूरा मान कितना होगा?

If (a+b+c=10), what is the complete value of ( (a+b+c)2 )?

Explanation opens after your attempt
Correct Answer

C. (100)

Step 1

Concept

If the whole sum is (10), its square is (100). Exam tip: directly square the given sum.

Step 2

Why this answer is correct

The correct answer is C. (100). If the whole sum is (10), its square is (100). Exam tip: directly square the given sum.

Step 3

Exam Tip

यदि पूरा योग (10) है तो उसका वर्ग (100) होगा। परीक्षा में दिए गए योग का सीधे वर्ग लें।

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AI Video Prompt 16:9 + 9:16

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Question Expert Mathematics Number Systems Square root spiral Class 9 Level 21

यदि \(\sqrt{121}\) सर्पिल में बना है, तो यह वास्तविक लंबाई में कितनी इकाई है?

If \(\sqrt{121}\) is formed in the spiral, how many units is it in actual length?

Explanation opens after your attempt
Correct Answer

B. (11)

Step 1

Concept

\(\sqrt{121}=11\), because \(11^2=121\). Identifying perfect squares saves time.

Step 2

Why this answer is correct

The correct answer is B. (11). \(\sqrt{121}=11\), because \(11^2=121\). Identifying perfect squares saves time.

Step 3

Exam Tip

\(\sqrt{121}=11\), क्योंकि \(11^2=121\)। पूर्ण वर्ग पहचानना समय बचाता है।

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AI Video Prompt 16:9 + 9:16

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Question Easy Mathematics Sets The Empty Set, Finite and Infinite Sets, Equal Sets Class 11 Level 5

यदि \(P={x:x\in \mathbb{N},x^2=9}\), तो (P) कौन सा समुच्चय है?

If \(P={x:x\in \mathbb{N},x^2=9}\), which set is (P)?

Explanation opens after your attempt
Correct Answer

B. ({3})

Step 1

Concept

The numerical values satisfying \(x^2=9\) can be (-3) and (3).

Step 2

Why this answer is correct

Since \(x\in \mathbb{N}\), only (3) is allowed.

Step 3

Exam Tip

Read every condition together before forming the set. चरण 1: \(x^2=9\) के संख्यात्मक मान (-3) और (3) हो सकते हैं। चरण 2: \(x\in \mathbb{N}\) है, इसलिए केवल (3) लिया जाएगा। चरण 3: हर शर्त को साथ पढ़ें, तभी सही समुच्चय बनेगा।

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AI Video Prompt 16:9 + 9:16

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Question Easy Chemistry Chapter 01: Solutions 6: Molar Mass Determination Class 12 Level 17

किसी प्रयोग में शुद्ध विलायक का क्वथनांक \(100.0^\circ C\) और विलयन का क्वथनांक \(100.2^\circ C\) है। \(\Delta T_b\) कितना होगा?

In an experiment, boiling point of pure solvent is \(100.0^\circ C\) and boiling point of solution is \(100.2^\circ C\). What is \(\Delta T_b\)?

Explanation opens after your attempt
Correct Answer

A. (0.2,K)

Step 1

Concept

\(\Delta T_b\) is the difference of temperatures.

Step 2

Why this answer is correct

(100.2-100.0=0.2,K).

Step 3

Exam Tip

For temperature difference, Celsius and kelvin have the same numerical value. चरण 1: \(\Delta T_b\) तापों का अंतर है। चरण 2: (100.2-100.0=0.2,K) होगा। चरण 3: ताप के अंतर में सेल्सियस और केल्विन का संख्यात्मक मान समान होता है।

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Question Easy Chemistry Chapter 01: Solutions 6: Molar Mass Determination Class 12 Level 16

यदि (0.2,m) विलयन (1,kg) विलायक में बना है, तो विलेय के मोल कितने होंगे?

If a (0.2,m) solution is prepared in (1,kg) solvent, how many moles of solute are present?

Explanation opens after your attempt
Correct Answer

C. (0.20) मोल(0.20) mol

Step 1

Concept

In (1,kg) solvent, the numerical value of molality gives moles of solute.

Step 2

Why this answer is correct

Therefore moles \(=0.2\times1=0.2\).

Step 3

Exam Tip

Questions with one kilogram solvent are very direct. चरण 1: (1,kg) विलायक में मोललता का संख्यात्मक मान ही विलेय के मोल देता है। चरण 2: इसलिए मोल \(=0.2\times1=0.2\)। चरण 3: एक किलोग्राम विलायक वाले प्रश्न बहुत सीधे होते हैं।

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Question Easy Chemistry Chapter 01: Solutions 6: Molar Mass Determination Class 12 Level 16

यदि (0.02,M) विलयन का आयतन (1,L) है, तो विलेय के मोल कितने होंगे?

If a (0.02,M) solution has volume (1,L), how many moles of solute are present?

Explanation opens after your attempt
Correct Answer

B. (0.02) मोल(0.02) mol

Step 1

Concept

\(Moles (=\)molarity\(\times\)volume).

Step 2

Why this answer is correct

\(0.02\times1=0.02\) mol.

Step 3

Exam Tip

\(For one litre volume, the numerical value of molarity equals moles. चरण 1: मोल (=\)मोलरता\(\times\)आयतन)। चरण 2: \(0.02\times1=0.02\) मोल। चरण 3: एक लीटर आयतन होने पर मोलरता का संख्यात्मक मान ही मोल बन जाता है।

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Question Expert Chemistry Chapter 01: Solutions 5: Colligative Properties Class 12 Level 14

यदि विलयन का क्वथनांक \(100.78^\circ C\) और शुद्ध जल का क्वथनांक \(100.00^\circ C\) है, तो क्वथनांक उन्नयन कितना है?

If the boiling point of a solution is \(100.78^\circ C\) and that of pure water is \(100.00^\circ C\), what is the elevation in boiling point?

Explanation opens after your attempt
Correct Answer

A. (0.78,K)

Step 1

Concept

Elevation in boiling point is the difference between boiling point of solution and pure solvent.

Step 2

Why this answer is correct

\(\Delta T_b=100.78-100.00=0.78,K\).

Step 3

Exam Tip

For temperature difference, Celsius and kelvin have the same numerical value. चरण 1: क्वथनांक उन्नयन विलयन और शुद्ध विलायक के क्वथनांक का अंतर है। चरण 2: \(\Delta T_b=100.78-100.00=0.78,K\) होगा। चरण 3: तापांतर के लिए सेल्सियस और केल्विन में संख्यात्मक अंतर समान रहता है।

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Question Easy Artificial Intelligence Part B: Subject Specific Skills Machine Learning Basics Class 12 Level 10

पूर्वानुमान प्रतिरूप के लिए उपयुक्त परिणाम कौन सा है?

Which is a suitable output for a regression model?

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Correct Answer

A. मकान की कीमत का अनुमानEstimated price of a house

Step 1

Concept

Regression gives a numerical value.

Step 2

Why this answer is correct

House price is given as a number.

Step 3

Exam Tip

Category based answers belong to classification. चरण 1: पूर्वानुमान में परिणाम संख्यात्मक मान होता है। चरण 2: मकान की कीमत संख्या के रूप में बताई जाती है। चरण 3: वर्ग वाले उत्तर वर्गीकरण से जुड़े हैं।

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Question Easy Artificial Intelligence Part B: Subject Specific Skills Machine Learning Basics Class 12 Level 7

पूर्वानुमान कार्य में मॉडल सामान्यतः क्या बताता है?

What does a model usually give in prediction or regression?

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Correct Answer

A. संख्यात्मक मानNumerical value

Step 1

Concept

In regression a model estimates a quantity.

Step 2

Why this answer is correct

The result is often a number.

Step 3

Exam Tip

Predicting house price is a simple example. चरण 1: पूर्वानुमान में मॉडल किसी मात्रा का अनुमान लगाता है। चरण 2: परिणाम अक्सर संख्या के रूप में होता है। चरण 3: घर की कीमत बताना इसका सरल उदाहरण है।

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