Question

According to Huygens principle, a wave front can propagate -

• A. only in forward direction.
• B. only in backward direction.
• C. both forward and backward directions.
• D. None of these

Answer 1

The correct option is A only in forward direction.

According to Huygens principle, a wave front can propagate only in forward direction.

Hence, option $\left(A\right)$ is the correct answer.