Question : Which of these waves can be polarised?
Option 1: Sound waves in the air
Option 2: Longitudinal waves on a string
Option 3: Transverse waves on a string
Option 4: Light waves
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Correct Answer: Light waves
Solution : The correct answer is Light waves.
Polarised waves can only be transverse waves. Sound waves in the air are longitudinal waves, which cannot be polarised. Only transverse waves can be polarised because they vibrate in all directions that are perpendicular to the direction of travel. Only because "light waves" are transverse and oscillate in more than one direction. It is not dependent on wavelength or frequency.
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Question : Which type of sound waves can propagate in solids?
Option 1: Longitudinal only
Option 2: Transverse only
Option 3: Either longitudinal or transverse
Option 4: Non-mechanical waves only
Question : Matter waves are:
Option 1: De Broglie waves
Option 2: Electromagnetic waves
Option 3: Transverse waves
Option 4: Longitudinal waves
Question : When a stone is thrown into the calm water of a pond, the waves produced on the surface of the water in the pond are:
Option 1: Longitudinal
Option 2: Transverse
Option 3: Both longitudinal and transverse
Option 4: Waves are not produced
Question : Which of the following earthquake waves are longitudinal waves?
Option 1: L waves
Option 2: P waves
Option 3: N waves
Option 4: S Waves
Question : White light is an example of:
Option 1: LASER light
Option 2: Plane polarised light
Option 3: Monochromatic light
Option 4: Polychromatic light
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