Huygen Principle

Huygens' principle is used to

• Obtain the new position of wavefront
• Explain the principle of superposition of waves
• Explain interference
• Explain polarization

According to Huygen’s theory, light is a form of

• particle
• Rays
• Wave
• Corpuscles

A cylindrical wavefront is formed with

• a source of infinite distance
• an extended source
• a point source at infinite distance
• a point source at finite distance

According to Huygen’s principle, every point on a wavefront acts as

• a primary source
• a secondary source
• a stationary source
• a bright intensity source

By a monochromatic wave, we mean

• a single ray
• a single ray of a single colour
• a wave having a single wavelength
• Many rays of a single colour

A plane wavefront incident on a concave mirror after reflection becomes

• a plane wavefront
• a cylindrical wavefront
• a hyperbolic wavefront
• a spherical wavefront

Wave – theory of light was given by

• Newton
• Huygen
• Maxwell
• Einstein

What is the nature of the wavefront associated parallel beam of light ?

• spherical
• cylindrical
• plane
• none of the above

Wavefront of a wave has direction to wave motion

• parallel
• perpendicular
• opposite
• any angle

During reflection of a plane wavefront from plane reflecting surface, the secondary wavelets are drawn with

• decreasing radii
• increasing radii
• same radii
• any radii