Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Why is it necessary to write a unit with a measurement?

Answer and explanation

Correct answer: To make the meaning of the measurement clear

A measurement is not just a number; it describes the amount of a physical quantity. The unit tells us what standard the number is compared with and what kind of quantity is being reported. For example, a length of 5 without a unit is incomplete, because it could mean 5 metres, centimetres or another unit. Writing the unit makes a result understandable, comparable and useful to another person.

Option B is correct because a unit clarifies the meaning of a measurement. Options A and C treat the unit as decoration or unnecessary extra writing, while option D wrongly suggests that units make an experiment difficult. In science, the number and unit should be recorded together, such as a mass in grams, a time in seconds or a temperature in degrees Celsius. The appropriate unit should match the quantity being measured.

Related tags

UnitMeasurementScientific DataScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.