Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves
by

1 Answer

Answer :

ANSWER: B
by
selected

Related questions

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Description : Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Last Answer : ANSWER: B

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Description : Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Last Answer : ANSWER: B

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Description : Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Last Answer : ANSWER: B

Which wave has the highest frequency? w) microwaves x) infrared waves y) ultraviolet waves z) radio waves

Description : Which wave has the highest frequency? w) microwaves x) infrared waves y) ultraviolet waves z) radio waves

Last Answer : ANSWER: Y -- ULTRAVIOLET WAVES

Which of the following types radiations is absorbed by the upper layer of the atmosphere? A. Radio-waves B. Infrared C. Visible D. Ultraviolet

Description : Which of the following types radiations is absorbed by the upper layer of the atmosphere? A. Radio-waves B. Infrared C. Visible D. Ultraviolet

Last Answer : ANSWER: B

Which type of radiations are absorbed by the upper layer of the atmosphere? (1) Radio-waves (2) Infrared (3) Visible (4) Ultraviolet

Description : Which type of radiations are absorbed by the upper layer of the atmosphere? (1) Radio-waves (2) Infrared (3) Visible (4) Ultraviolet

Last Answer : (4) Ultraviolet Explanation: The Troposphere is the layer where the weather happens. Above this layer is the Stratosphere and in between them is the Ozone layer that absorbs the sun's ... . Above the Stratosphere is the Mesosphere, the Thermosphere including the Ionosphere - and the Exosphere.

What do radioactive substances emit? (1) Radio waves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ rays

Description : What do radioactive substances emit? (1) Radio waves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ rays

Last Answer : (4) α, β and γ rays Explanation: Of the three main types of radiation given off during radioactive decay, two are particles and one is energy; scientists call them alpha, beta and gamma after the first three letters of the Greek alphabet.

Waves that are required for long distance wireless communication are – (1) Infrared rays (2) Ultraviolet rays (3) Radio waves (4) Microwaves

Description : Waves that are required for long distance wireless communication are – (1) Infrared rays (2) Ultraviolet rays (3) Radio waves (4) Microwaves

Last Answer : (3) Radio waves Explanation: Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor. With radio waves distances can be short ... , or as far as thousands or even millions of kilometres for deep-space radio communications.

Any energy which radiates in the form of radio waves, infrared waves, light waves, x-rays, etc. A. Radiant energy B. Electromagnetic C. Heat D. Ultraviolet

Description : Any energy which radiates in the form of radio waves, infrared waves, light waves, x-rays, etc. A. Radiant energy B. Electromagnetic C. Heat D. Ultraviolet

Last Answer : B. Electromagnetic

Which type of radiations are absorbed by the upper layer of the atmosphere? (1) Radio-waves (2)Infrared (3) Visible (4) Ultraviolet

Description : Which type of radiations are absorbed by the upper layer of the atmosphere? (1) Radio-waves (2)Infrared (3) Visible (4) Ultraviolet

Last Answer : Ultraviolet

Waves that are required for long distance wireless communication are (1) Infrared rays (2) Ultraviolet rays (3) Radio waves (4) Microwaves

Description : Waves that are required for long distance wireless communication are (1) Infrared rays (2) Ultraviolet rays (3) Radio waves (4) Microwaves

Last Answer : Radio waves

The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ? A. red waves B. Infrared waves C. Ultrasonic (Answer) D. super sonic E. None of these

Description : The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ? A. red waves B. Infrared waves C. Ultrasonic (Answer) D. super sonic E. None of these

Last Answer : C. Ultrasonic (Answer)

Band of light waves, that are too short to be seen by human eye. A. Visible B. Infrared C. Ultraviolet D. Amber

Description : Band of light waves, that are too short to be seen by human eye. A. Visible B. Infrared C. Ultraviolet D. Amber

Last Answer : C. Ultraviolet

Which one of the following frequency regions is a part of sun's radiation? (A) Ultraviolet frequency region (B) Infrared frequency region (C) Radio frequency region (D) All of these

Description : Which one of the following frequency regions is a part of sun's radiation? (A) Ultraviolet frequency region (B) Infrared frequency region (C) Radio frequency region (D) All of these

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Styrene resin is produced from ethylene which is made from petroleum (B) Styrene resin is light in weight (C) Styrene resin transmits ultraviolet waves of light (D) All the above

Description : Pick up the correct statement from the following: (A) Styrene resin is produced from ethylene which is made from petroleum (B) Styrene resin is light in weight (C) Styrene resin transmits ultraviolet waves of light (D) All the above

Last Answer : Answer: Option D

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

A pulse compression radar transmits an encoded pulse having a frequency chirp from 990 MHz to 1010 MHz

Description : A pulse compression radar transmits an encoded pulse having a frequency chirp from 990 MHz to 1010 MHz centred around 1 GHz. The range resolution capability of this radar is A) 7.5 m B) 7.5 Km C) 75 m D) 750 m 

Last Answer : A pulse compression radar transmits an encoded pulse having a frequency chirp from 990 MHz to 1010 MHz centred around 1 GHz. The range resolution capability of this radar is 7.5 m

X-rays region lies between – (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Description : X-rays region lies between – (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Last Answer : (3) Gamma-rays and ultraviolet region Explanation: X-rays region lies between Gamma rays and ultra-violet region.

X-rays region lies between (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Description : X-rays region lies between (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Last Answer : Gamma-rays and ultraviolet region

A mobile phone sends and receives messages through _____. A. Radio waves B. Ultraviolet waves C. Micro waves D. Sound waves

Description : A mobile phone sends and receives messages through _____. A. Radio waves B. Ultraviolet waves C. Micro waves D. Sound waves

Last Answer : ANSWER: A

A mobile phone sends and receives messages through _____. A. Radio waves B. Ultraviolet waves C. Micro waves D. Sound waves

Description : A mobile phone sends and receives messages through _____. A. Radio waves B. Ultraviolet waves C. Micro waves D. Sound waves

Last Answer : ANSWER: A

A mobile phone sends and receives messages through _____. A. Radio waves B. Ultraviolet waves C. Micro waves D. Sound waves

Description : A mobile phone sends and receives messages through _____. A. Radio waves B. Ultraviolet waves C. Micro waves D. Sound waves

Last Answer : ANSWER: A

Radar is used for (a) Detecting objects by using light waves (b) Reflecting sound waves to detect objects (c) Determining the presence and location of objects with radio waves (d) Tracking rain-bearing clouds

Description : Radar is used for (a) Detecting objects by using light waves (b) Reflecting sound waves to detect objects (c) Determining the presence and location of objects with radio waves (d) Tracking rain-bearing clouds

Last Answer : Ans:(b)

________ are usedfor short-range communications such as those between a PC and aperipheral device. A) Radio waves B) Microwaves C) Infrared waves D) none of the above

Description : ________ are usedfor short-range communications such as those between a PC and aperipheral device. A) Radio waves B) Microwaves C) Infrared waves D) none of the above

Last Answer : Infrared waves

…….are used for short-range communications such as those between a PC and aperipheral device. a. Radio waves b. None of These c. Microwaves d. Infrared waves

Description : …….are used for short-range communications such as those between a PC and aperipheral device. a. Radio waves b. None of These c. Microwaves d. Infrared waves

Last Answer : d. Infrared waves

Infiber optics, thesignal is_______ waves. A) light B) radio C) infrared D) very low-frequency

Description : Infiber optics, thesignal is_______ waves. A) light B) radio C) infrared D) very low-frequency

Last Answer : light

For sending sound waves at large distance, which waves are used? A. Infrared waves B. Radio waves C. Light waves D. X-waves

Description : For sending sound waves at large distance, which waves are used? A. Infrared waves B. Radio waves C. Light waves D. X-waves

Last Answer : ANSWER: B

For sending sound waves at large distance, which waves are used? A. Infrared waves B. Radio waves C. Light waves D. X-waves

Description : For sending sound waves at large distance, which waves are used? A. Infrared waves B. Radio waves C. Light waves D. X-waves

Last Answer : ANSWER: B

How does the wavelength of infrared compared the wavelength of ultraviolet waves?

Description : How does the wavelength of infrared compared the wavelength of ultraviolet waves?

Last Answer : Wavelength of infra red would be greater than that of ultraviolet waves.

Radioactive elements emit – (1) Radiowaves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ radiations

Description : Radioactive elements emit – (1) Radiowaves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ radiations

Last Answer : (4) α, β and γ radiations Explanation: The phenomenon of spontaneous emission of certain kinds of radiations by some elements is called radioactivity and the elements emitting such radiations are called ... the radioactive substances are separated in to three types, called a, b and g rays.

In the remote control of television, electromagnetic waves used are – (1) ultraviolet (2) microwave (3) radiowave (4) infrared

Description : In the remote control of television, electromagnetic waves used are – (1) ultraviolet (2) microwave (3) radiowave (4) infrared

Last Answer : (4) infrared Explanation: All electromagnetic waves used are infrared.

In the remote control of television, electromagnetic waves used are (1) ultraviolet (2) microwave (3) radiowave (4) infrared

Description : In the remote control of television, electromagnetic waves used are (1) ultraviolet (2) microwave (3) radiowave (4) infrared

Last Answer : infrared

Which of the following waves can penetrate through clouds?  ultrasonic  gamma  radar  visible and infrared

Description : Which of the following waves can penetrate through clouds?  ultrasonic  gamma  radar  visible and infrared

Last Answer : radar

Which waves can penetrate through clouds  A. ultrasonic  B.gamma  C.radar  D.visible and infrared

Description : Which waves can penetrate through clouds  A. ultrasonic  B.gamma  C.radar  D.visible and infrared

Last Answer : C.radar

Which of the following waves can penetrate through clouds?  ultrasonic  gamma  radar  visible and infrared

Description : Which of the following waves can penetrate through clouds?  ultrasonic  gamma  radar  visible and infrared

Last Answer : radar

The sensor that sends out sound pulses called pings, then receives the returning sound echo is called A : Active Sonar B : Passive Sonar C : Radar D : Laser Rangefinder

Description : The sensor that sends out sound pulses called pings, then receives the returning sound echo is called A : Active Sonar B : Passive Sonar C : Radar D : Laser Rangefinder

Last Answer : A : Active Sonar

The sensor that sends out sound pulses called pings, then receives thereturning sound echo is called A : Active Sonar B : Passive Sonar C : Radar D : Laser Rangefinder

Description : The sensor that sends out sound pulses called pings, then receives thereturning sound echo is called A : Active Sonar B : Passive Sonar C : Radar D : Laser Rangefinder

Last Answer : A : Active Sonar

The sensor that sends out sound pulses called pings, then receives the returning sound echo is called A : Active Sonar B : Passive Sonar C : Radar D : Laser Rangefinder

Description : The sensor that sends out sound pulses called pings, then receives the returning sound echo is called A : Active Sonar B : Passive Sonar C : Radar D : Laser Rangefinder

Last Answer : A : Active Sonar

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy? A. radio, visible, infrared, ultraviolet, x-ray, gamma ray B. radio, infrared, visible, x-ray, gamma ray, ultraviolet C. visible, radio, infrared, ultraviolet, x-ray, gamma ray D. radio, infrared, visible, ultraviolet, x-ray, gamma ray (Answer)

Description : Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy? A. radio, visible, infrared, ultraviolet, x-ray, gamma ray B. radio, infrared, visible ... -ray, gamma ray D. radio, infrared, visible, ultraviolet, x-ray, gamma ray (Answer)

Last Answer : D. radio, infrared, visible, ultraviolet, x-ray, gamma ray (Answer)

What transmits sound waves to the inner ear making waves in the fluid in the cochlea?

Description : What transmits sound waves to the inner ear making waves in the fluid in the cochlea?

Last Answer : The ossicles amplify the sound. They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea). ... The auditory nerve sends these impulses to the brain. The brain then translates these electrical impulses as sound.

The band of light wavelengths that are too short to be seen by the human eye ∙ a. Amber ∙ b. Visible ∙ c. Infrared ∙ d. Ultraviolet

Description : The band of light wavelengths that are too short to be seen by the human eye ∙ a. Amber ∙ b. Visible ∙ c. Infrared ∙ d. Ultraviolet

Last Answer : c. Infrared

Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit (1) X-rays (2) ultraviolet light (3) (4) All of the above (4) radio waves

Description : Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit (1) X-rays (2) ultraviolet light (3) (4) All of the above (4) radio waves

Last Answer : (4) All of the above Explanation: A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Infrared LEDs are used in remote-control circuits, such as those used with a wide variety of consumer electronics.

Radio waves, microwaves, infra-red spectrum, ultraviolet rays, X-rays and gamma rays are classified as ______. (1) light waves (2) electromagnetic waves (3) electric waves (4) magnetic waves

Description : Radio waves, microwaves, infra-red spectrum, ultraviolet rays, X-rays and gamma rays are classified as ______. (1) light waves (2) electromagnetic waves (3) electric waves (4) magnetic waves

Last Answer : (2) electromagnetic waves Explanation: Electromagnetic radiation is the radiant energy released by certain electromagnetic processes. It consists of electromagnetic waves which are synchronized oscillations of electric and magnetic fields that propagate at the speed of light through a vacuum.

What Infrared rays are electromagnet waves that are longer than radio waves but shorter than visible light rays true of false?

Description : What Infrared rays are electromagnet waves that are longer than radio waves but shorter than visible light rays true of false?

Last Answer : Need answer

Which of the following waves cannot be polarized? (1) Radio (2) Ultra violet (3) Infrared (4) Ultrasonic

Description : Which of the following waves cannot be polarized? (1) Radio (2) Ultra violet (3) Infrared (4) Ultrasonic

Last Answer : (4) Ultrasonic Explanation: Only transverse waves (such as radio, ultraviolet and infrared waves) can be polarized since their vibrations can potentially occur in all directions perpendicular to the direction of travel. It is therefore possible to confine the vibrations to a single plane.

The ozone layer protects us from - (1) Ultra violet rays (2) Radio waves (3) Visual radiation (4) Infrared radiation

Description : The ozone layer protects us from - (1) Ultra violet rays (2) Radio waves (3) Visual radiation (4) Infrared radiation

Last Answer : (1) Ultra violet rays Explanation: The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects.

_____ are used for cellular phone, satellite,and wireless LAN communications. A) Radio waves B) Microwaves C) Infrared waves D) none of the above

Description : _____ are used for cellular phone, satellite,and wireless LAN communications. A) Radio waves B) Microwaves C) Infrared waves D) none of the above

Last Answer : Microwaves

Wireless transmission of signals can be done via ___________ a. radio waves b. microwavesc. infrared d. all of the mentioned

Description : Wireless transmission of signals can be done via ___________ a. radio waves b. microwaves c. infrared d. all of the mentioned

Last Answer : d. all of the mentioned

……………are used for cellular phone, satellite, and wireless LAN communications.a. Microwaves b. Radio waves c. None of these d. Infrared waves

Description : ……………are used for cellular phone, satellite, and wireless LAN communications. a. Microwaves b. Radio waves c. None of these d. Infrared waves

Last Answer : a. Microwaves

Which of the following waves cannot be polarised? (1) Radio (2) Ultra violet (3) Infrared (4) Ultrasonic

Description : Which of the following waves cannot be polarised? (1) Radio (2) Ultra violet (3) Infrared (4) Ultrasonic

Last Answer : Ultrasonic