Question

After the new moon, how long does it take for the full moon to appear?

• A. 30 days
• B. 2 weeks
• C. 7 days
• D. 4 days

Answer 1

The correct option is B 2 weeks

The new moon is a complete dark phase and the full moon is a complete lighted up phase of the moon. It takes about 28 days for the moon to complete one cycle around the earth.

The moon completely lights up on the full moon day in approximately 14 days after the new moon day and then fades eventually to complete the cycle.

​​​​​​​Therefore, it takes two weeks i.e 14 days for the full moon to appear after the new moon.