- Which of the following types of waves require a medium to propagate?
a) Electromagnetic waves
b) Mechanical waves
c) Both a and b
d) None of the above
Answer: b) Mechanical waves
- Which of the following waves has the highest frequency?
a) Radio waves
b) Microwaves
c) Ultraviolet waves
d) X-rays
Answer: d) X-rays
- Which of the following waves has the longest wavelength?
a) Gamma rays
b) Infrared waves
c) Ultraviolet waves
d) Visible light waves
Answer: b) Infrared waves
- The time period of a wave is:
a) The distance between two successive peaks of a wave
b) The distance between two successive troughs of a wave
c) The time taken for one complete cycle of the wave
d) The time taken for half a cycle of the wave
Answer: c) The time taken for one complete cycle of the wave
- The speed of a wave is given by:
a) wavelength x frequency
b) frequency x time period
c) amplitude x frequency
d) none of the above
Answer: a) wavelength x frequency
- In a longitudinal wave, the particles of the medium move:
a) perpendicular to the direction of wave propagation
b) parallel to the direction of wave propagation
c) both a and b
d) none of the above
Answer: b) parallel to the direction of wave propagation
- The speed of sound is maximum in:
a) Air
b) Water
c) Iron
d) Vacuum
Answer: c) Iron
- The phenomenon of the bending of waves around corners or obstacles is called:
a) Reflection
b) Refraction
c) Diffraction
d) Polarization
Answer: c) Diffraction
- The phenomenon of the bouncing back of waves from a surface is called:
a) Reflection
b) Refraction
c) Diffraction
d) Polarization
Answer: a) Reflection
- The phenomenon of the change in the direction of propagation of waves when they pass from one medium to another is called:
a) Reflection
b) Refraction
c) Diffraction
d) Polarization
Answer: b) Refraction
- Which of the following waves cannot be polarized?
a) Longitudinal waves
b) Transverse waves
c) Both a and b
d) None of the above
Answer: a) Longitudinal waves
- The unit of frequency is:
a) Hertz
b) Meter
c) Joule
d) Watt
Answer: a) Hertz
- The unit of wavelength is:
a) Hertz
b) Meter
c) Joule
d) Watt
Answer: b) Meter
- The unit of amplitude is:
a) Hertz
b) Meter
c) Joule
d) Watt
Answer: b) Meter
- The distance between two consecutive crests or troughs of a wave is called:
a) Frequency
b) Wavelength
c) Amplitude
d) Phase
Answer: b) Wavelength
- The phenomenon of the interference of waves occurs when:
a) Two waves of the same frequency and amplitude are out of phase
b) Two waves of the same frequency and amplitude are in phase
c) Two waves of different frequencies are in phase
d) Two waves of different frequencies are out of phase
Answer: b) Two waves of the same frequency and amplitude are in phase
- The number of cycles of a wave that occur in one second is called:
a) Amplitude
b) Frequency
c) Wavelength
d) Phase
Answer: b) Frequency
- The distance traveled by a wave in one time period is called:
a) Frequency
b) Wavelength
c) Amplitude
d) Velocity
Answer: d) Velocity
- The phenomenon of the change in the amplitude of a wave due to the superposition of two or more waves is called:
a) Interference
b) Diffraction
c) Refraction
d) Polarization
Answer: a) Interference
- The phenomenon of the change in the direction of polarization of a wave due to its reflection from a surface is called:
a) Interference
b) Diffraction
c) Refraction
d) Polarization
Answer: d) Polarization
- The energy carried by a wave is proportional to its:
a) Frequency
b) Wavelength
c) Amplitude
d) Velocity
Answer: c) Amplitude
- Which of the following waves is used in medical imaging?
a) Radio waves
b) X-rays
c) Infrared waves
d) Ultraviolet waves
Answer: b) X-rays
- The pitch of a sound is determined by its:
a) Frequency
b) Amplitude
c) Wavelength
d) Velocity
Answer: a) Frequency
- The loudness of a sound is determined by its:
a) Frequency
b) Amplitude
c) Wavelength
d) Velocity
Answer: b) Amplitude
- The SI unit of frequency is:
a) Hertz
b) Newton
c) Pascal
d) Joule
Answer: a) Hertz
- The SI unit of amplitude is:
a) Hertz
b) Meter
c) Joule
d) Watt
Answer: b) Meter
- In which of the following mediums does sound travel the fastest?
a) Air
b) Water
c) Steel
d) Vacuum
Answer: c) Steel
- The phenomenon of the bending of light waves when they pass from one medium to another is called:
a) Reflection
b) Refraction
c) Diffraction
d) Polarization
Answer: b) Refraction
- The phenomenon of the splitting of light into its constituent colors is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: d) Dispersion
- The phenomenon of the bending of light waves when they strike a surface is called:
a) Reflection
b) Refraction
c) Diffraction
d) Polarization
Answer: a) Reflection
- The type of electromagnetic radiation with the highest energy is:
a) Radio waves
b) Microwaves
c) X-rays
d) Gamma rays
Answer: d) Gamma rays
- The type of electromagnetic radiation with the longest wavelength is:
a) Radio waves
b) Microwaves
c) Infrared waves
d) Ultraviolet waves
Answer: a) Radio waves
- The type of electromagnetic radiation with the shortest wavelength is:
a) X-rays
b) Ultraviolet waves
c) Visible light
d) Infrared waves
Answer: a) X-rays
- Which of the following statements about electromagnetic waves is true?
a) They require a medium to travel through
b) They are longitudinal waves
c) They are transverse waves
d) They travel slower than sound waves
Answer: c) They are transverse waves
- Which of the following colors has the highest frequency?
a) Red
b) Blue
c) Yellow
d) Green
Answer: b) Blue
- Which of the following colors has the longest wavelength?
a) Red
b) Blue
c) Yellow
d) Green
Answer: a) Red
- Which of the following devices is used to split white light into its constituent colors?
a) Prism
b) Lens
c) Mirror
d) Grating
Answer: a) Prism
- Which of the following phenomena is responsible for the formation of rainbows?
a) Diffraction
b) Interference
c) Refraction
d) Dispersion
Answer: c) Refraction
- The type of mirror that always produces an inverted image is:
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror
Answer: b) Concave mirror
- The type of lens that always produces a virtual image is:
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens
Answer: b) Concave lens
- Which of the following is not a type of electromagnetic radiation?
a) Sound waves
b) X-rays
c) Gamma rays
d) Ultraviolet rays
Answer: a) Sound waves
- The ability of a material to allow light to pass through it is called its:
a) Opacity
b) Transparency
c) Translucency
d) Reflectivity
Answer: b) Transparency
- Which of the following is not a type of electromagnetic spectrum?
a) Visible spectrum
b) Infrared spectrum
c) Ultraviolet spectrum
d) Magnetic spectrum
Answer: d) Magnetic spectrum
- The type of lens that can produce a real or virtual image depending on the position of the object is:
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens
Answer: a) Convex lens
- Which of the following is an example of a mechanical wave?
a) Radio wave
b) X-ray
c) Sound wave
d) Gamma ray
Answer: c) Sound wave
- The distance between two consecutive peaks or troughs of a wave is called its:
a) Amplitude
b) Wavelength
c) Frequency
d) Velocity
Answer: b) Wavelength
- Which of the following types of electromagnetic radiation is responsible for sunburns?
a) Radio waves
b) Microwaves
c) Infrared waves
d) Ultraviolet waves
Answer: d) Ultraviolet waves
- The bending of sound waves around obstacles is called:
a) Reflection
b) Refraction
c) Diffraction
d) Polarization
Answer: c) Diffraction
- Which of the following phenomena is responsible for the formation of mirages?
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
- The phenomenon of the polarization of light is related to the:
a) Orientation of the electric and magnetic fields of the light waves
b) Splitting of light into its constituent colors
c) Bending of light waves when they pass from one medium to another
d) Bending of light waves around obstacles
Answer: a) Orientation of the electric and magnetic fields of the light waves
- The SI unit of frequency is:
a) Hertz
b) Newton
c) Joule
d) Watt
Answer: a) Hertz
- The phenomenon of interference of light is related to:
a) The bending of light waves around obstacles
b) The splitting of light into its constituent colors
c) The interaction of two or more waves that are superimposed on each other
d) The polarization of light waves
Answer: c) The interaction of two or more waves that are superimposed on each other
- Which of the following is not a property of waves?
a) Frequency
b) Amplitude
c) Velocity
d) Mass
Answer: d) Mass
- The process of changing the direction of a wave as it passes through a medium is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
- Which of the following types of waves can travel through a vacuum?
a) Sound waves
b) Water waves
c) Electromagnetic waves
d) Seismic waves
Answer: c) Electromagnetic waves
- The phenomenon of beats is related to:
a) The reflection of waves from a surface
b) The interference of two waves that have slightly different frequencies
c) The bending of waves around obstacles
d) The polarization of waves
Answer: b) The interference of two waves that have slightly different frequencies
- Which of the following types of waves has the highest speed in a vacuum?
a) Sound waves
b) Water waves
c) Electromagnetic waves
d) Seismic waves
Answer: c) Electromagnetic waves
- The process of separating a complex wave into its individual components is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: d) Dispersion
- Which of the following types of waves is longitudinal?
a) Sound waves
b) Water waves
c) Electromagnetic waves
d) Seismic waves
Answer: a) Sound waves
- The property of waves that determines their loudness or brightness is called:
a) Frequency
b) Wavelength
c) Amplitude
d) Velocity
Answer: c) Amplitude