Advertisements
Advertisements
Question
Choose the correct option:
Which of the following phenomenon proves that light is a transverse wave?
Options
Reflection
Interference
Diffraction
Polarization
Solution
Polarization
Explanation:
The property of the waves that confines its orientations to one specific direction is called polarization. For a transverse wave, the direction of motion is perpendicular to the direction in which the oscillation occurs. But as for longitudinal waves, both these motions are in the same direction. So there is no scope for confinement. That is there is no such phenomenon of polarization for longitudinal waves. Light waves undergo polarization. This further implies that the light is a transverse wave.
APPEARS IN
RELATED QUESTIONS
What is Brewster’s law? Derive the formula for Brewster angle.
When unpolarized light is passed through a polarizer, its intensity ______.
Unpolarized light with intensity I0 is incident on two polaroids. The axis of the first polaroid makes on the angle of 50° with the vertical, and the axis of the second polaroid is horizontal. What is the intensity of the light after it has passed through the second polaroid?
Light entering an air glass (µ = 1.5) boundary is partly reflected and partly refracted. If the incident and reflected rays are at right angles to each other, the angle of refraction r is given by ____________.
The Brewster's angle for the glass-air interface is (54.74)°. If a ray of light passing from air to glass strickes at an angle of incidence 45°, then the angle of refraction is ______.
`[tan (54.74)° = sqrt2, sin 45 = 1/sqrt2]`
The polarizing angle for a transparent medium is 'θ' and 'V' is the speed of light in that medium, then relation between 'θ' and 'V' is (c = velocity of light).
Choose the CORRECT statement from the following.
Brewster's angle for a transparent medium is ______.
When a beam of unpolarised monochromatic light is incident on a plane glass plate at a polarizing angle, then which one of the following statements is correct?
When unpolarised light is passed through crossed polaroids, then light passing through the first polaroid ______
The angle of polarization for a medium is 60°. The critical angle for this will be ______
`(tan 60^circ = sqrt3)`
From Brewster's law, except for polished metallic surfaces, the polarising angle ______.
Define electric polarization in dielectrics.
Unpolarized light with intensity I0 is incident on two polarizers initially oriented for maximum transmission. What is the intensity of the light transmitted through the second polarizer if the second polarizer is rotated through (a) 30° (b) 60°?
The wavelengths of a certain blue light in air and in glass are 480 nm and 320 nm, respectively. Find the Brewster angle for this blue light incident on the glass.
Unpolarized light is passed through two polarizers that are oriented with their transmission axes perpendicular. What percentage of the light intensity passed by the first polarizer is the light intensity passed by the second polarizer when the second polarizer is rotated through 30°?
Draw a neat labelled diagram of unpolarized light passing through two polarizers.
Draw a neat labelled diagram of Polarization by reflection.
