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Worksheetswave optics
Total questions: 10
Worksheet time: 5mins
If a plane wavefront is incident on a concave mirror, then the emergent wavefront will be _________ of the mirror as its centre.
conical with focus
spherical with focus
spherical with centre of the curvature of the surface
conical with centre of the curvature of the surface
The energy of the wave travels in a direction (a) to the wavefront.
_______ principle says that each point of the wavefront is the source of a secondary disturbance and the wavelets emanating from these points spread out in all directions with the speed of the wave.
Rayleigh
Maxwell
Huygens
Hertz
According to Huygens principle of secondary wavelets, each particle at a wave front
is an electron
behaves as a photon
represents the direction of the motion of wave front
behaves as a new light source
The spherical wave front is received
near the Sun
near a lighting tube-light
when the light wave is coming from Sun to Earth
all of the above
The direction of wave front of a wave with the difference of propagation of wave is
parallel
perpendicular
opposite
at angle
A wave front is an imaginary surface where
all particles lying on this vibrate in opposite phase
some particles in same phase and some in opposite phase
all particles lying on this vibrate in same phase
none of these
The phenomenon of diffraction can be understood using
Fraunhofer
Uncertainty principle
Fresnel
Huygens principle
Wave front is a imaginary surface, where
everywhere phase is equal
phase difference are equal
phase difference is different
none of these
A wavefront is defined as a surface of ________ phase.
constant
increasing
decreasing
time variable
