Waves which need a material medium for their propagation are called

Waves which need a material medium for their propagation are called
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mechanical

waves.
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Which one of the following waves requires a material medium for their propagation? a) Light waves b) X– rays c) -rays d) Sound waves

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

The basic underlying principle of using a mist propagation system is that it: a. Keeps the propagation medium uniformly moist and supplies moisture to the base of the cuttings b. Keeps the plant material cool c. Cools the propagation medium to promote root formation and development d. Increases humidity around the cutting and reduces transpiration

Description : The basic underlying principle of using a mist propagation system is that it: a. Keeps the propagation medium uniformly moist and supplies moisture to the base of the cuttings b. ... medium to promote root formation and development d. Increases humidity around the cutting and reduces transpiration

Last Answer : Increases humidity around the cutting and reduces transpiration

The waves in which particles vibrate along the direction of the propagation are called

Description : The waves in which particles vibrate along the direction of the propagation are called

Last Answer : longitudinal waves.

The waves in which particles vibrate in the direction perpendicular to the direction of wave propagation are called

Description : The waves in which particles vibrate in the direction perpendicular to the direction of wave propagation are called

Last Answer : transverse waves.

The mode theory uses electromagnetic wave behavior to describe the propagation of the light along the fiber. What is a set of guided electromagnetic waves called?

Description : The mode theory uses electromagnetic wave behavior to describe the propagation of the light along the fiber. What is a set of guided electromagnetic waves called?

Last Answer : Modes of the fiber.

What are compressional waves with particle motion in the same direction as wave propagation?

Description : What are compressional waves with particle motion in the same direction as wave propagation?

Last Answer : What is the answer ?

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

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.

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

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 ... is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves.

The propagation of the electromagnetic waves can be illustrated by a) Faraday law b) Ampere law c) Flemming rule d) Coulomb law

Description : The propagation of the electromagnetic waves can be illustrated by a) Faraday law b) Ampere law c) Flemming rule d) Coulomb law

Last Answer : c) Flemming rule

In electromagnetic waves, the electric field will be perpendicular to which of the following? a) Magnetic field intensity b) Wave propagation c) Both H and wave direction d) It propagates independently

Description : In electromagnetic waves, the electric field will be perpendicular to which of the following? a) Magnetic field intensity b) Wave propagation c) Both H and wave direction d) It propagates independently

Last Answer : c) Both H and wave direction

Geodimeter is based on: (A) Propagation of modulated light waves (B) Propagation of infrared radiation (C) The visible light as carrier with frequency of the order of 5 × 1014 Hz (D) High frequency radio waves

Description : Geodimeter is based on: (A) Propagation of modulated light waves (B) Propagation of infrared radiation (C) The visible light as carrier with frequency of the order of 5 × 1014 Hz (D) High frequency radio waves

Last Answer : Answer: Option A

Compared to the velocity of propagation of waves in air, what is the velocity of propagation of waves in waveguides?

Description : Compared to the velocity of propagation of waves in air, what is the velocity of propagation of waves in waveguides?

Last Answer : Slower.

Which radio frequency bands use the tropospheric scattering principle for propagation of radio waves?

Description : Which radio frequency bands use the tropospheric scattering principle for propagation of radio waves?

Last Answer : Vhf and above

Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Description : Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Last Answer : ANSWER: W -- PROPAGATION VELOCITY

Explain the transverse electromagnetic waves in wave propagation.

Description : Explain the transverse electromagnetic waves in wave propagation.

Last Answer : 1. The electromagnetic waves are oscillations, which propagate through free space. 2. Em wave travel in free space at the speed of light. 3. Figure shows the simple EM wave, in which the direction of ... electromagnetic waves (TEM). Diagram:- Transverse electromagnetic wave(TEM) OR

Which of the following statements is not true with respect to microwaves? (A) Electromagnetic waves with frequencies from 300 GHz to 400 THz. (B) Propagation is line-of-sight. (C) Very high-frequency waves cannot penetrate walls. (D) Use of certain portions of the band requires permission from authorities.

Description : Which of the following statements is not true with respect to microwaves? (A) Electromagnetic waves with frequencies from 300 GHz to 400 THz. (B) Propagation is line-of-sight. (C) Very ... waves cannot penetrate walls. (D) Use of certain portions of the band requires permission from authorities.

Last Answer : (A) Electromagnetic waves with frequencies from 300 GHz to 400 THz.

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

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 : adiabatic compression and rarefaction

The phenomenon of change in direction of light when it passes from one medium to another is called - (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Description : The phenomenon of change in direction of light when it passes from one medium to another is called - (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Last Answer : (3) Refraction Explanation: Refraction is the change in direction of wave propagation due to a change in its transmission medium. Due to the change of medium, the phase velocity of the wave is changed but its frequency remains constant.

The phenomenon of change in direction of light when it passes from one medium to another is called (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Description : The phenomenon of change in direction of light when it passes from one medium to another is called (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Last Answer : Refraction

Two particles of of a medium disturbed by the wave propagation are at `x_(1) = 0` and `x_(2) = 1 cm`. The wave is propagating in positive x-direction.

Description : Two particles of of a medium disturbed by the wave propagation are at `x_(1) = 0` and `x_(2) = 1 cm`. The wave is propagating in positive x-direction.

Last Answer : Two particles of of a medium disturbed by the wave propagation are at `x_(1) = 0` and `x_(2) = 1 cm`. The ... `y = (2) sin [(2pi)/(16)(24t-x)]cm`.

Dispersion is used to describe the a. Splitting of white light into its component colors b. Propagation of light in straight lines c. Bending of a beam of light when it goes from one medium to another d. Bending of a beam light when it strikes a mirror

Description : Dispersion is used to describe the a. Splitting of white light into its component colors b. Propagation of light in straight lines c. Bending of a beam of light when it goes from one medium to another d. Bending of a beam light when it strikes a mirror

Last Answer : a. Splitting of white light into its component colors

If the velocity of propagation in a certain medium is 200x106 m/s, what is its refractive index? A. 1.3 B. 1.5 C. 1.27 D. 0.67

Description : If the velocity of propagation in a certain medium is 200x106 m/s, what is its refractive index? A. 1.3 B. 1.5 C. 1.27 D. 0.67

Last Answer : B. 1.5

The propagation constant of the wave in a conductor with air as medium is a) √(ωμσ) b) ωμσ c) √(ω/μσ) d) ω/μσ

Description : The propagation constant of the wave in a conductor with air as medium is a) √(ωμσ) b) ωμσ c) √(ω/μσ) d) ω/μσ

Last Answer : a) √(ωμσ)

What condition causes a light ray to be totally reflected back into its medium of propagation?

Description : What condition causes a light ray to be totally reflected back into its medium of propagation?

Last Answer : Total internal reflection occurs when the angle of refraction approaches 90 degrees. This condition occurs when the angle of incidence increases to the point where no refraction is possible.

It is the angle formed between the propagating ray and the normal after the ray has entered the second medium. ∙ A. angle of incidence ∙ B. angle of reflection ∙ C. propagation angle ∙ D. angle of refraction

Description : It is the angle formed between the propagating ray and the normal after the ray has entered the second medium. ∙ A. angle of incidence ∙ B. angle of reflection ∙ C. propagation angle ∙ D. angle of refraction

Last Answer : angle of reflection

Dispersion is used to describe the ∙ a. Splitting of white light into its component colors ∙ b. Propagation of light in straight lines ∙ c. Bending of a beam of light when it goes from one medium to another ∙ d. Bending of a beam light when it strikes a mirror

Description : Dispersion is used to describe the ∙ a. Splitting of white light into its component colors ∙ b. Propagation of light in straight lines ∙ c. Bending of a beam of light when it goes from one medium to another ∙ d. Bending of a beam light when it strikes a mirror

Last Answer : a. Splitting of white light into its component colors

Electromagneticwaves are refractedwhen they a. pass into a medium of different dielectric constant b. are polarized at right angles to the direction of propagation c. encounter a perfectly conducting plane d. pass through a small slot in a conducting plane

Description : Electromagneticwaves are refractedwhen they a. pass into a medium of different dielectric constant b. are polarized at right angles to the direction of propagation c. encounter a perfectly conducting plane d. pass through a small slot in a conducting plane

Last Answer : a. pass into a medium of different dielectric constant

Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Description : Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Last Answer : b. It does not use in micro-propagation work

Which of the following is a correct description of ‘tissue culture’? (1) Conservation of forests and plantation (2) Growth and propagation of horticultural crops (3) Science of cultivating animal tissue in artificial medium (4) Protection of wild animals

Description : Which of the following is a correct description of ‘tissue culture’? (1) Conservation of forests and plantation (2) Growth and propagation of horticultural crops (3) Science of cultivating animal tissue in artificial medium (4) Protection of wild animals 

Last Answer : Science of cultivating animal tissue in artificial medium

What waves that can travel with or without a medium are called?

Description : What waves that can travel with or without a medium are called?

Last Answer : Electromagnetic waves can travel with or without a medium.

What are Waves that move the particles of the medium parallel to the direction in which the waves are traveling called?

Description : What are Waves that move the particles of the medium parallel to the direction in which the waves are traveling called?

Last Answer : Longitudinal.An example of a longitudinal wave is sound. It pushes the mediumparticles forwards and backwards, parallel to the wave'sdirection.Transverse waves cause particles to move perpendicular to thewave. (E.g. visible light, x-rays, microwaves)

What are Waves that move the particles of the medium parallel to the direction in which the waves are traveling called?

Description : What are Waves that move the particles of the medium parallel to the direction in which the waves are traveling called?

Last Answer : Longitudinal.An example of a longitudinal wave is sound. It pushes the mediumparticles forwards and backwards, parallel to the wave'sdirection.Transverse waves cause particles to move perpendicular to thewave. (E.g. visible light, x-rays, microwaves)

There is no net transfer of energy by the particles of the medium in which waves? -General Knowledge

Description : There is no net transfer of energy by the particles of the medium in which waves? -General Knowledge

Last Answer : The answer is 'Stationary waves'

There is no net transfer of energy by the particles of the medium in which waves? -General Knowledge

Description : There is no net transfer of energy by the particles of the medium in which waves? -General Knowledge

Last Answer : answer:

There is no net transfer of energy by the particles of the medium in which waves? -General Knowledge

Description : There is no net transfer of energy by the particles of the medium in which waves? -General Knowledge

Last Answer : answer:

In a given medium all sound waves move?

Description : In a given medium all sound waves move?

Last Answer : Yes, usually they do.

Sound waves can be transmitted by any (1) Medium (2) Vacuum (3) Both medium and vacuum (4) None of the above

Description : Sound waves can be transmitted by any (1) Medium (2) Vacuum (3) Both medium and vacuum (4) None of the above

Last Answer : (1) Medium Explanation: Sound is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves. It requires a medium to propagate.

There is no net transfer of energy by the particles of the medium in which waves?

Description : There is no net transfer of energy by the particles of the medium in which waves?

Last Answer : Stationary waves

.In electromagneticwaves,polarization a. is caused by reflection b.isdue to the transversenature ofthewaves c. results from the longitudinal nature of the waves d. is always vertical in an isotropic medium

Description : .In electromagneticwaves,polarization a. is caused by reflection b.isdue to the transversenature ofthewaves c. results from the longitudinal nature of the waves d. is always vertical in an isotropic medium

Last Answer : b.isdue to the transversenature ofthewaves

A wave in which the wave’s medium is compressed in the same direction as the movement of the wave A. Transversal wave B. Transverse wave C. Frequency wave D. compression wave

Description : A wave in which the wave’s medium is compressed in the same direction as the movement of the wave A. Transversal wave B. Transverse wave C. Frequency wave D. compression wave

Last Answer : C. Frequency wave

A wave in which the movement of the wave’s medium is perpendicular to the movement of the wave traveling through the medium A. Transverse waves B. Compression waves C. Nodular Waves D. Ocean Waves

Description : A wave in which the movement of the wave’s medium is perpendicular to the movement of the wave traveling through the medium A. Transverse waves B. Compression waves C. Nodular Waves D. Ocean Waves

Last Answer : A. Transverse waves

Two sources of light are said to be coherent if __________. A. they produce waves of the same wave length B. they have the same amplitude of vibration C. they produce waves in the medium simultaneously D. they produce waves of the same amplitude

Description : Two sources of light are said to be coherent if __________. A. they produce waves of the same wave length B. they have the same amplitude of vibration C. they produce waves in the medium simultaneously D. they produce waves of the same amplitude

Last Answer : D. they produce waves of the same amplitude

When electromagnetic waves strike the boundary of denser medium they are __________. A. Reflected, in phase B. Reflected out of phase by 180° C. reflected, they are completely absorbed

Description : When electromagnetic waves strike the boundary of denser medium they are __________. A. Reflected, in phase B. Reflected out of phase by 180° C. reflected, they are completely absorbed

Last Answer : B. Reflected out of phase by 180°

1. There is no net transfer of energy by the particles of the medium in which waves? 2. Jaspal Rana is a distinguished athlete in which game? 3. Which provides the largest part of the demand for loanable funds in India? 4. Moho discontinuity lies at the depth of approximately howmany kilometers? 5. Who was well-known patron of the Mahayana of Buddhism?

Description : 1. There is no net transfer of energy by the particles of the medium in which waves? 2. Jaspal Rana is a distinguished athlete in which game? 3. Which provides the largest part of the ... having the same rainfall called? 20. Which Gupta king is famous for his courageous stand against the Hunas?

Last Answer : Answer : 1. Stationary waves 2. Shooting 3. Corporate businesses 4. 400 km 5. Kanishka 6. Turtle 7. President 8. Smelting 9. Pamir Plateau 10. Ilango 11. Chess 12. One 13. European 14. ... Tamil 16. In Parliament before being accepted 17. Battery 18. Internal borrowings 19. Isohyet 20. Skanda Gupta

________ dispersion is caused by the difference in the propagation times of light rays that take different paths down a fiber. a. Material dispersion b. Wavelength dispersion c. Modal dispersion d. Delay dispersion

Description : ________ dispersion is caused by the difference in the propagation times of light rays that take different paths down a fiber. a. Material dispersion b. Wavelength dispersion c. Modal dispersion d. Delay dispersion

Last Answer : c. Modal dispersion

Referred to the dielectric constant of a transmission line material. A. Inductance and capacitance B. Velocity factor C. Characteristic impedance D. Propagation velocity

Description : Referred to the dielectric constant of a transmission line material. A. Inductance and capacitance B. Velocity factor C. Characteristic impedance D. Propagation velocity

Last Answer : B. Velocity factor

Ratio of the velocity of propagation of a light ray in free space to the velocity of propagation of a light ray in free space in a given material. ∙ A. refractive index ∙ B. standing wave ratio ∙ C. velocity factor ∙ D. propagation velocity

Description : Ratio of the velocity of propagation of a light ray in free space to the velocity of propagation of a light ray in free space in a given material. ∙ A. refractive index ∙ B. standing wave ratio ∙ C. velocity factor ∙ D. propagation velocity

Last Answer : ∙ A. refractive index

Material dispersion is caused by the ∙ a. Wavelength dependence of the index of refraction ∙ b. Wavelength independence of the index of refraction ∙ c. Dependence of the propagation constant on the mode number ∙ d. Independence of the propagation constant on the mode number

Description : Material dispersion is caused by the ∙ a. Wavelength dependence of the index of refraction ∙ b. Wavelength independence of the index of refraction ∙ c. Dependence of the propagation constant on the mode number ∙ d. Independence of the propagation constant on the mode number

Last Answer : d. Independence of the propagation constant on the mode number

______ dispersion is caused by the difference in the propagation times of light rays that take different paths down a fiber. ∙ a. Material dispersion ∙ b. Wavelength dispersion ∙ c. Modal dispersion

Description : ______ dispersion is caused by the difference in the propagation times of light rays that take different paths down a fiber. ∙ a. Material dispersion ∙ b. Wavelength dispersion ∙ c. Modal dispersion

Last Answer : ∙ c. Modal dispersion