Description : Which waves cannot be transmitted through vacuum - (1) Light (2) Heat (3) Sound (4) Electromagnetic
Last Answer : (3) Sound Explanation: Sound waves cannot be transmitted through vacuum. It is transmitted by the movement of particles along with the direction of the motion of the sound wave. More generally, sound is a mechanical disturbance which is dependent upon a medium to travel.
Description : These waves cannot be transmitted through vacuum (1) Light (2) Sound (3) Heat (4) Electromagnetic
Last Answer : Sound
Description : Sound and light waves both _______. (1) have similar wavelength (2) obey the laws of reflection (3) travel as longitudinal waves (4) travel through vacuum
Last Answer : (2) obey the laws of reflection Explanation: The two laws of reflection of light are applicable to sound waves as well. The incident wave, the normal to the reflecting surface and the reflected wave at the point of incidence lie in the same plane.
Description : These waves cannot be trans-mitted through vacuum – (1) Light (2) Sound (3) Heat (4) Electromagnetic
Last Answer : (2) Sound Explanation: Sound is a mechanical wave that is created by vibrating objects and propagated through a medium from one location to another. Because mechanical waves rely on particle interaction ... space that are void of particles. That is, mechanical waves cannot travel through a vacuum.
Description : Which of the following does NOT travel in a vacuum? w) radio waves x) gamma rays y) magnetic waves z) sound waves
Last Answer : ANSWER: Z -- SOUND WAVES
Description : T.V. transmission cannot cover a very large area because _____ A. The strength of T.V. waves is very limited B. Picture cannot be transmitted clearly after a specific distance C. The shape of the earth is spherical D. The air is not a good conductor of light and sound/waves
Last Answer : ANSWER: C
Description : T.V. transmission cannot cover a very large area because A. the strength of T.V. waves is very limited B. picture cannot be transmitted clearly after a specific distance C. the shape of the earth is spherical (Answer) D. the air is not a good conductor of light and sound/waves
Last Answer : C. the shape of the earth is spherical (Answer)
Description : Sound waves transmitted from a source are sometimes weak when they reach the detector. What instrument is needed to boost the weak signal?
Last Answer : An amplifier.
Description : A device that was constructed from mirrors and selenium detectors that transmitted sound waves over a beam of light. ∙ A. lightphone ∙ B. photophone ∙ C. cameraphone ∙ D. walletphone
Last Answer : B. photophone
Description : Light waves are different from sound waves in that 1. Light waves are electromagnetic but sound waves are not 2. Light waves can travel through water but sound waves cannot 3. Light travels with the same speed in all media 4. Light ... /are correct? (a) 1 and 5 (b) 2 and 3 (c) 3 and 4 (d) 1 and 4
Last Answer : Ans:(a)
Description : Assertion (A) Sound waves are not electromagnetic waves. Reason (R) Sound waves cannot propagate in vacuum.
Description : Which of the following does NOT travel in a vacuum? A. Radio waves B. Gamma rays C. Magnetic waves D. Sound waves
Last Answer : D. Sound waves
Description : Sound waves do not travel through _______. a) solids b)gases c)liquid d)vacuum
Last Answer : d)vacuum
Description : In what medium sound travels the faster? A. Vacuum B. Solid C. Liquid D. Gas
Last Answer : B. Solid
Description : Longitudinal waves cannot travel through – (1) Vacuum (2) Solid (3) Liquid (4) Gas
Last Answer : (1) Vacuum Explanation: Longitudinal waves cannot travel through vacuum because such wave requires a medium such as solid liquid or air to travel through. They cannot travel through vacuum or in space. ... is in the same direction as, or the opposite direction to, the motion of the wave.
Description : Longitudinal waves cannot travel through (1) Vacuum (2) Solid (3) Liquid (4) Gas
Last Answer : Vacuum
Description : In a given medium all sound waves move?
Last Answer : Yes, usually they do.
Description : Which one of the following waves requires a material medium for their propagation? a) Light waves b) X– rays c) -rays d) Sound waves
Last Answer : d) Sound waves
Description : The speed of light in vacuum "C" divided by the Index of Refraction "N" gives the: w) frequency of the light x) speed of the light in the medium y) energy of the light z) wavelength of the light
Last Answer : ANSWER: X -- SPEED OF THE LIGHT IN THE MEDIUM
Description : In which transmission are sound and video signals transmitted simultaneously?
Last Answer : – T.V. Transmission
Description : t an organization, its products, or both, that is transmitted through a mass medium at no charge. 1. advertising 2. publicity 3. public relations 4. sales promotion 5. personal selling
Last Answer : publicity
Description : ___________ is communication in news story form about an organisation, its products, or both, that is transmitted through a mass medium at no charge. A)Advertising B)Publicity C)Public relations D)Sales promotion E)Personal selling
Last Answer : B)Publicity
Description : By what process is heat transmitted from the filament of an evacuated electric bulb to the glass? (a) Conduction (b) Convection (c) Radiation (d) Heat cannot be transmitted through vacuum
Last Answer : Ans:(c)
Description : Heat waves (A) Cannot pass through vacuum (B) Travel in straight line (C) Can be reflected by a mirror (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : The velocity of heat radiation in vacuum is – (1) Equal to that of light (2) Less than that of light (3) Greater than that of light (4) Equal to that of sound
Last Answer : (1) Equal to that of light Explanation: Electrons are generally responsible for heat conduction. The phonons (vibrations of the nuclei) also play a part, depending on the temperature of the ... Electromagnetic radiation, which in a vacuum should go on forever at the speed of light theoretically.
Description : Sound cannot pass through – (1) Water (2) Steel (3) Air (4) Vacuum
Last Answer : (4) Vacuum Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing. Sound ... propagation). Sound cannot travel through a vacuum because it does not provide the medium to propagate.
Description : Velocity of the sound is minimum in - (1) Steel (2) Vacuum (3) Water (4) Air
Last Answer : (2) Vacuum Explanation: The speed of sound in a vacuum is zero meters per second, as sound cannot travel in a vacuum. Sound is a wave, which means it spreads through the vibration of particles in a medium, such as water or air.
Description : Among the following materials sound travels fastest in – (1) Steel (2) Air (3) Vacuum (4) Water
Last Answer : (1) Steel Explanation: The speed of sound is the distance travelled during a unit of time by a sound wave propagating through an elastic medium. In dry air at 20 °C (68 °F), the speed ... varies from substance to substance. Sound travels faster in liquids and non-porous solids than it does in air.
Description : Among the following materials sound travels fastest in (1) Steel (2) Air (3) Vacuum (4) Water
Last Answer : Steel
Description : Sound cannot pass through (1) water (2) steel (3) air (4) vacuum
Last Answer : vacuum
Description : The velocity of heat radiation in vacuum is (1) Equal to that of light (2) Less than that of light (3) Greater than that of light (4) Equal to that of sound
Last Answer : Equal to that of light
Description : Wireless Internet is a way to send and receive Internet data over relatively short distances with low-power transmitters. What type of waves are transmitted for wifi?
Last Answer : radio waves
Description : What do you call the energy that was not radiated into space or completely transmitted? A. Incident waves B. Captured waves C. Standing waves D. Modulated waves
Last Answer : C. Standing waves
Description : Energy that has neither been radiated into space nor completely transmitted. A. Captured waves B. Incident waves C. Standing waves D. Modulated waves
Description : Before data can be transmitted, they must be transformed to________. A) periodic signals B) electromagnetic signals C) aperiodic signals D) low-frequency sine waves
Last Answer : electromagnetic signals
Description : There is a maximum frequency at which vertically transmitted radio waves can be refracted back to Earth. What is this maximum frequency called?
Last Answer : Critical frequency.
Description : A function of an optic isolator ∙ a. Cancels reflective waves ∙ b. Amplifies signal transmitted ∙ c. Filters unnecessary signals ∙ d. All of these
Last Answer : a. Cancels reflective waves
Description : Can sound waves generate heat? -Physics
Last Answer : Yes, sound waves can generate heat. In fact, sound waves almost always generate a little bit of heat as they travel and almost always end up as heat when they are absorbed. Sound and heat are both ... Yelling at your soup does indeed warm it up, but the amount is far too small to be noticeable.
Description : In which case sound waves are used ?
Last Answer : : Some animals can hear the sound of non-verbal vibrations even if people do not hear it. Elephants communicate with each other by the sound of this vibration. This word can go ... distortion. Earthquakes and nuclear explosions cause these vibrations to vibrate and wreak havoc with strong shaking.
Description : What kind of sound waves ? And through which goes more ?
Last Answer : The word is a longitudinal wave it moves harder through
Description : What are the characteristics of sound waves ?
Last Answer : Characteristics of sound waves: Vibration of an object produces sound waves. Elastic inert media are required to conduct sound waves. The sound is called a mechanical wave. This wave is a longitudinal ... and overlap. The speed of sound also depends on the temperature and humidity of the medium.
Description : Bats can sense obstacles because they produce – (1) supersonic sound waves (2) ultrasonic sound waves (3) infrasonic sound waves (4) micro sound waves
Last Answer : (2) ultrasonic sound waves Explanation: The reason that bats use ultrasound is because it has such a high frequency and it has a low diffraction or it bends less. They use this sound to do a ... come faster in a particular area than the rest of the sounds then they know that something is near.
Description : The bats can fly in the dark because – (1) They can see the objects in darkness (2) They have weak legs and are likely to be attacked by predators (3) They generate flashes of light (4) They generate ultrasonic sound waves
Last Answer : (3) They generate flashes of light
Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction
Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the ... . Through solids, however, it can be transmitted as both longitudinal waves and transverse waves.
Description : The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because - (1) the ringing is not loud enough (2) the glass of the bell jar absorbs the sound waves (3) the bell jar is too small (4) there is no air or any other gas in the bell jar
Last Answer : (4) there is no air or any other gas in the bell jar
Description : What are audible sound waves? (1) Having frequency less than 20 Hz (2) Having frequency between 20 Hz to 20000 Hz (3) Having frequency more than 20000 Hz (4) None of above
Last Answer : (2) Having frequency between 20 Hz to 20000 Hz
Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within ... is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves.
Description : Ondometer is a - (1) Measuring instrument for distance covered by motor wheels (2) Measuring instrument for frequency of electromagnetic waves (3) Device for measuring sound intensity (4) Measuring instrument for electric power
Last Answer : (2) Measuring instrument for frequency of electromagnetic waves
Description : Sound waves are produced by - (1) Linear motion (2) Circular motion (3) Vibrating bodies (4) Transitional motion
Last Answer : (3) Vibrating bodies Explanation: Sound is produced when something vibrates. The vibrating body causes the medium (water, air, etc.) around it to vibrate.
Description : Which of these waves can be polarized? (1) Sound waves in air (2) Longitudinal waves on a string (3) Transverse waves on a string (4) Light waves
Last Answer : (4) Light waves Explanation: It is possible to transform unpolarized light into polarized light. A light. wave that is vibrating in more than one plane is referred to as unpolarized light. Polarized light waves are light waves in which the vibrations occur in a single plane.