8 = 2³, so log₂8 = log₂(2³) = 3
Back to JEE Main 2020 Algebra
JEE Main 2020 — Mathematics Algebra
easy
mcq
2020
Official previous-year question
Verified 30 May 2026.
Question
The value of log₂8 is:
Options
- A2
- B3
- C4
- D8
Solution
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
JEE Main Algebra in other years
More JEE Main Algebra Questions
If the roots of x² - 5x + k = 0 are in the ratio 2:3, then k equals:
2026
easy
mcq
For the quadratic equation ax² + bx + c = 0 to have two distinct real roots, the discriminant must satisfy:
2025
easy
mcq
If α and β are roots of x² - 5x + 6 = 0, then α³ + β³ equals:
2025
medium
mcq
If $\\alpha$ and $\\beta$ are roots of $x^2 - 5x + 6 = 0$, then $\\alpha + \\beta$ is
2023
easy
mcq
If α and β are roots of x² - 5x + 6 = 0, then α³ + β³ is equal to:
2023
medium
mcq