MCQ practice · SSC Physics Board questions · Chapter 1: Physical Quantities and Their Measurements
1 gigabyte is−
- i. 1000 times larger than 1 megabyte
- ii. 1000 times smaller than 1 terabyte
- iii. 10⁹ times larger than 1 kilobyte
Think it through first, then pick an option.
- a iii
- b i and ii
- c i and iii
- d i, ii and iii
Answer and explanation
Correct answer: b i and ii
i is true: 10⁹ ÷ 10⁶ = 10³. ii is true: 10¹² ÷ 10⁹ = 10³. iii is false.
Why the other options are wrong
- a iii: iii is false: 1 GB ÷ 1 kB = 10⁹ ÷ 10³ = 10⁶. Also i and ii are true but are left out of this option.
- c i and iii: iii is false: the giga to kilo ratio is 10⁶, not 10⁹; ii is true but is left out of this option.
- d i, ii and iii: iii is false: the giga to kilo ratio is 10⁶, not 10⁹, so not all three are true.
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