Question

According to Huygen's construction, relation between old and new wavefront is ______.

Options

• New wavefront is backward to old wavefront

• The new wavefront is inclined at an angle to the old wavefront

• The new wavefront is the forward envelope of the secondary wavelet

• New wavefront is perpendicular to the old wavefront

Answer 1

According to Huygen's construction, relation between old and new wavefront is the new wavefront is the forward envelope of the secondary wavelet.

Explanation:

Huygens’ construction tells us that the new wavefront is the forward envelope of the secondary waves.