Hard Mathematics Chapter 1: Real Numbers Class 10 Level 18

यदि किसी छात्र ने लिखा कि \(\sqrt{5}\) परिमेय है क्योंकि (5) पूर्ण संख्या है, तो सही सुधार क्या होगा?

If a student writes that \(\sqrt{5}\) is rational because (5) is a whole number, what is the correct correction?

Explanation opens after your attempt
Correct Answer

A. पूर्ण संख्या का वर्गमूल हमेशा परिमेय नहीं होताThe square root of a whole number is not always rational

Step 1

Concept

(5) is a whole number, but its square root need not be rational unless it is a perfect square.

Step 2

Why this answer is correct

Since (5) is not the square of an integer, \(\sqrt{5}\) is not rational.

Step 3

Exam Tip

In exams, distinguish a number from its square root. चरण 1: (5) पूर्ण संख्या है, लेकिन उसका वर्गमूल पूर्ण वर्ग न होने पर परिमेय नहीं होता। चरण 2: (5) किसी पूर्ण संख्या का वर्ग नहीं है, इसलिए \(\sqrt{5}\) परिमेय नहीं माना जा सकता। चरण 3: परीक्षा में संख्या और उसके वर्गमूल को अलग-अलग पहचानें।

FAQs

Mathematics Question FAQs

What is the correct answer to this Mathematics MCQ?

The correct answer is A. पूर्ण संख्या का वर्गमूल हमेशा परिमेय नहीं होता / The square root of a whole number is not always rational.

Where can I practice more Mathematics questions?

Open the subject page or level quiz links on this page to practice more active Mathematics MCQs with answers and explanations.

Related Mathematics Questions

Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.