Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

The decimal equivalent of 1111:

Options:

25

35

15

5

Correct Answer:

15

Explanation:

$1111 = 1 × 2^3 + 1 × 2^2 + 1 × 2^1 + 1 × 2^0$

$= 8 + 4 + 2 + 1 = 15$