Question: What is the effect of a \'shift left\' operation on a binary number?

Options:

1. It multiplies the number by 2
2. It divides the number by 2
3. It adds a zero to the end
4. It reverses the number

Correct Answer: It multiplies the number by 2

Solution:

A \'shift left\' operation on a binary number effectively multiplies the number by 2.