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WorksheetsLaser Quiz
Total questions: 10
Worksheet time: 3mins
When a beam of light enters one medium from another, which quantity will not change?
Direction
Speed
Frequency
Wavelength
Dispersion is used to describe the
Splitting of white light into its component colors
Propagation of light in straight lines
Bending of a beam of light when it goes from one medium to another
Bending of a beam light when it strikes a mirror
The wavelength of light has no role in
Diffraction
Interference
Polarization
Reflection
Laser light is ______ emission.
Coherent
Stimulated
Spontaneous
Coherent and stimulated
Which of the following factor does not harm laser efficiency?
Atmospheric absorption
Excitation energy not absorbed
Problems in depopulating the lower laser level
Inefficiency in populating the upper laser level
Which one of the following statements is true for the speed v and the acceleration of a particle executing simple harmonic motion?
When c is maximum, a is maximum
Value of a is zero, whatever may be the value of v
hen v is zero, a is zero
When v is maximum, a is zero
The circular motion of a particle whose speed is constant is ______________
Periodic but not simple harmonic
Simple harmonic but not periodic
Periodic and simple harmonic
Neither periodic not simple harmonic
A particle of mass m is hanging vertically by an ideal spring of force constant K. if the mass is made to oscillate vertically, its total energy is
Maximum at extreme position
Maximum at mean position
Minimum at mean position
Same at all positions
The main benefit of light-wave communications over microwaves or any other communications media is
Lower cost
Better security
Wider bandwidth
Freedom from interference
Coherence of laser light is important for _________
Light propagation
Getting laser light to pass through air
Drilling holes
Holography
