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All questions of Wave for Delhi Police Constable Exam
Sound waves are an example of:- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
Sound waves are an example of:
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
Catalyst Learningacademy answered |
Sound waves are an example of mechanical waves as they require a medium (such as air, water, or solids) to propagate.
Which of the following waves have the shortest wavelength?- a)Radio waves
- b)X-rays
- c)Visible light
- d)Gamma rays
Correct answer is option 'D'. Can you explain this answer?
Which of the following waves have the shortest wavelength?
a)
Radio waves
b)
X-rays
c)
Visible light
d)
Gamma rays
|
|
Catalyst Learningacademy answered |
Gamma rays have the shortest wavelength among the given options.
Which type of wave can be diffracted?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Which type of wave can be diffracted?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
|
Catalyst Learningacademy answered |
Electromagnetic waves can undergo diffraction, which is the bending of waves around obstacles or through narrow openings.
Which type of wave can propagate in a vacuum?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Which type of wave can propagate in a vacuum?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
Paradigm Institute answered |
Electromagnetic waves, such as light and radio waves, can propagate in a vacuum without requiring a medium.
Which of the following waves can travel through solids, liquids, and gases?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
Which of the following waves can travel through solids, liquids, and gases?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
KS Coaching Center answered |
Mechanical waves, like sound waves and seismic waves, can travel through solids, liquids, and gases.
The wavelength of a wave is the distance between:- a)Two consecutive crests or troughs
- b)Two consecutive compressions or rarefactions
- c)Two consecutive nodes
- d)Two consecutive antinodes
Correct answer is option 'A'. Can you explain this answer?
The wavelength of a wave is the distance between:
a)
Two consecutive crests or troughs
b)
Two consecutive compressions or rarefactions
c)
Two consecutive nodes
d)
Two consecutive antinodes
|
|
Catalyst Learningacademy answered |
The wavelength of a wave is the distance between two consecutive crests or troughs.
The speed of sound waves is faster in:- a)Solids
- b)Liquids
- c)Gases
- d)They travel at the same speed in all mediums
Correct answer is option 'A'. Can you explain this answer?
The speed of sound waves is faster in:
a)
Solids
b)
Liquids
c)
Gases
d)
They travel at the same speed in all mediums
|
|
KS Coaching Center answered |
The speed of sound waves is faster in solids compared to liquids and gases due to the closer arrangement of particles.
Ultraviolet (UV) waves have __________ wavelength compared to infrared (IR) waves.- a)Longer
- b)Shorter
- c)Equal
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
Ultraviolet (UV) waves have __________ wavelength compared to infrared (IR) waves.
a)
Longer
b)
Shorter
c)
Equal
d)
None of the above
|
|
Paradigm Institute answered |
Ultraviolet (UV) waves have shorter wavelengths compared to infrared (IR) waves.
The speed of light in a vacuum is approximately:- a)300,000 km/s
- b)30,000 km/s
- c)3,000 km/s
- d)300 km/s
Correct answer is option 'A'. Can you explain this answer?
The speed of light in a vacuum is approximately:
a)
300,000 km/s
b)
30,000 km/s
c)
3,000 km/s
d)
300 km/s
|
|
Catalyst Learningacademy answered |
The speed of light in a vacuum is approximately 300,000 kilometers per second.
Which type of wave can undergo refraction?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Which type of wave can undergo refraction?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
|
Paradigm Institute answered |
Electromagnetic waves can undergo refraction when they pass through a medium of different optical density.
Which of the following waves require a medium to travel through?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
Which of the following waves require a medium to travel through?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
|
KS Coaching Center answered |
Mechanical waves require a medium (solid, liquid, or gas) to travel through. Examples include sound waves and seismic waves.
The phenomenon of reflection occurs when waves:- a)Change direction upon passing through a medium
- b)Bounce off a surface and change direction
- c)Bend around obstacles
- d)Change speed when entering a new medium
Correct answer is option 'B'. Can you explain this answer?
The phenomenon of reflection occurs when waves:
a)
Change direction upon passing through a medium
b)
Bounce off a surface and change direction
c)
Bend around obstacles
d)
Change speed when entering a new medium
|
|
Paradigm Institute answered |
Reflection occurs when waves encounter a surface and bounce back, changing their direction.
The frequency of a wave is measured in:- a)Watts
- b)Hertz
- c)Amperes
- d)Newtons
Correct answer is option 'B'. Can you explain this answer?
The frequency of a wave is measured in:
a)
Watts
b)
Hertz
c)
Amperes
d)
Newtons
|
|
KS Coaching Center answered |
The frequency of a wave is measured in Hertz (Hz).
Which of the following waves have the highest energy?- a)Radio waves
- b)X-rays
- c)Visible light
- d)Infrared waves
Correct answer is option 'B'. Can you explain this answer?
Which of the following waves have the highest energy?
a)
Radio waves
b)
X-rays
c)
Visible light
d)
Infrared waves
|
|
KS Coaching Center answered |
X-rays have higher energy compared to radio waves, visible light, and infrared waves.
Which type of wave consists of oscillations of electric and magnetic fields?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Which type of wave consists of oscillations of electric and magnetic fields?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
|
Paradigm Institute answered |
Electromagnetic waves consist of oscillating electric and magnetic fields and include various types of waves, such as radio waves, microwaves, and X-rays.
Which of the following waves can exhibit interference and diffraction?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Which of the following waves can exhibit interference and diffraction?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
|
Catalyst Learningacademy answered |
Electromagnetic waves, such as light waves, can exhibit interference and diffraction phenomena.
The wave-particle duality is a concept associated with:- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'C'. Can you explain this answer?
The wave-particle duality is a concept associated with:
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
|
Paradigm Institute answered |
The wave-particle duality is a concept associated with matter waves, also known as de Broglie waves, which are associated with particles such as electrons and protons.
Which of the following waves can be polarized?- a)Electromagnetic waves
- b)Mechanical waves
- c)Matter waves
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Which of the following waves can be polarized?
a)
Electromagnetic waves
b)
Mechanical waves
c)
Matter waves
d)
None of the above
|
|
Paradigm Institute answered |
Electromagnetic waves can be polarized by filtering out waves oscillating in certain directions.
Which of the following waves have the longest wavelength?- a)Radio waves
- b)X-rays
- c)Visible light
- d)Gamma rays
Correct answer is option 'A'. Can you explain this answer?
Which of the following waves have the longest wavelength?
a)
Radio waves
b)
X-rays
c)
Visible light
d)
Gamma rays
|
|
KS Coaching Center answered |
Radio waves have the longest wavelength among the given options.
The frequency and wavelength of a wave are:- a)Inversely proportional
- b)Directly proportional
- c)Not related
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
The frequency and wavelength of a wave are:
a)
Inversely proportional
b)
Directly proportional
c)
Not related
d)
None of the above
|
|
KS Coaching Center answered |
The frequency and wavelength of a wave are inversely proportional. As the frequency increases, the wavelength decreases, and vice versa.
Chapter doubts & questions for Wave - Lucent for GK 2025 is part of Delhi Police Constable exam preparation. The chapters have been prepared according to the Delhi Police Constable exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Delhi Police Constable 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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