Question
Easy
Which of the following numbers is written in the standard form ?
1
83.7×10$^{-9}$
2
45 × 10$^{3}$
3
8.5×10$^{-12}$
4
0.6 × 10$^{15}$
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: Power & Roots
Topic: Scientific Notation (Standard Form)
Correct Answer
Option C
Explanation
Option 3, which is 8.5×10$^{-12}$, is written in the standard form. In scientific notation, a number is in standard form when it is expressed as a product of a number between 1 and 10 and a power of 10. Let's analyze each option to understand why Option 3 is correct and why the others are not. 1. Option 1: 83.7×10$^{-9}$ - This number is not in standard form because the…Read More
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