Which one among the following is not an electromagnetic wave? (1) X-Ray (2) R-Ray (3) Cathode Ray (4) Infrared Ray

Which one among the following is not an electromagnetic wave? (1) X-Ray (2) R-Ray (3) Cathode Ray (4) Infrared Ray
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Cathode Ray
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Which one among the following is not an electromagnetic wave? (1) X-Ray (2) R-Ray (3) Cathode Ray (4) Infrared Ray

Description : Which one among the following is not an electromagnetic wave? (1) X-Ray (2) R-Ray (3) Cathode Ray (4) Infrared Ray

Last Answer : (3) Cathode Ray Explanation: In physics, electromagnetic radiation (EMR) refers to the waves (or their quanta, photons) of the electro-magnetic field, propagating (radiating) through space carrying ... includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-, and gamma radiation.

Which is the electromagnetic wave ? ① Alpha ray , ② beta ray , gamma ray , ④ cathode ray

Description : Which is the electromagnetic wave ? ① Alpha ray , ② beta ray , gamma ray , ④ cathode ray

Last Answer : Gamma ray electromagnetic waves.

Why cathode ray can not be regarded as electromagnetic wave?

Description : Why cathode ray can not be regarded as electromagnetic wave?

Last Answer : A cathode ray is a stream of electrons, not a stream of photonslike the electromagnetic wave. It's a different type of particle.The electrons don't move at light speed in a vacuum; also, they areelectrically charged.

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Description : In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Last Answer : (3) Ultraviolet

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Description : In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Last Answer : Ultraviolet

Which electromagnetic radiation is used for satellite communication? (1) Ultraviolet (2) Infrared (3) Microwave (4) Millimeter wave

Description : Which electromagnetic radiation is used for satellite communication? (1) Ultraviolet (2) Infrared (3) Microwave (4) Millimeter wave

Last Answer : (3) Microwave Explanation: Microwave electromagnetic radiation is used for satellite communication.

Which electromagnetic radiation is used for satellite communication ? (1) Ultraviolet (2) Infrared (3) Microwave (4) Millimeter wave

Description : Which electromagnetic radiation is used for satellite communication ? (1) Ultraviolet (2) Infrared (3) Microwave (4) Millimeter wave

Last Answer : Microwave

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)

Electromagnetic spectrum contains: (A) Gamma rays (wave length < 10-10 m) (B) Ultraviolet rays (wave length < 10-6 m) (C) Infrared rays (wave length < 10-4 m) (D) All of these

Description : Electromagnetic spectrum contains: (A) Gamma rays (wave length < 10-10 m) (B) Ultraviolet rays (wave length < 10-6 m) (C) Infrared rays (wave length < 10-4 m) (D) All of these

Last Answer : Answer: Option D

Cathode rays when obstructed by metal cause emission of - (1) γ – ray (2) X – ray (3) α – ray (4) β – ray

Description : Cathode rays when obstructed by metal cause emission of - (1) γ – ray (2) X – ray (3) α – ray (4) β – ray

Last Answer : B. X – ray

Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. (1) Microwave, infrared, visible. X-rays (2) X-rays, visible, infrared, microwave (3) Visible, infrared, microwave, X-rays (4) X-rays, infrared, visible, microwave

Description : Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. (1) Microwave, infrared, visible. X-rays (2) X-rays, visible, infrared, microwave (3) Visible, infrared, microwave, X-rays (4) X-rays, infrared, visible, microwave

Last Answer : (4) X-rays, infrared, visible, microwave Explanation: The Electromagnetic spectrum in order of decreasing energy, thus increasing wavelength : Gamma Rays-wavelength: 0.01 nm ; X-rays -1 nm ; Ultra-violet Rays-0.1 ... -10 m ; and Very High Frequency (VHF) and Ultra High Frequency (UHF): 10 m-10 cm.

Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. (1) Microwave, infrared, visible. X-rays (2) X -rays, visible, infrared, microwave (3) Visible, infrared, microwave, X-rays (4) X - rays, infrared, visible, microwave.

Description : Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. (1) Microwave, infrared, visible. X-rays (2) X -rays, visible, infrared, microwave (3) Visible, infrared, microwave, X-rays (4) X - rays, infrared, visible, microwave.

Last Answer : X - rays, infrared, visible, microwave.

.Light is A. an electromagnetic wave B. a form of energy visible to the human eye C. the same type of energy as an X ray D. the same type of energy as a radio wave E. all of the above

Description : .Light is A. an electromagnetic wave B. a form of energy visible to the human eye C. the same type of energy as an X ray D. the same type of energy as a radio wave E. all of the above

Last Answer : E. all of the above

The waveform of a certain signal can be studied by – (1) Spectrometer (2) Cathode ray oscilloscope (3) p - n junction diode (4) Sonometer

Description : The waveform of a certain signal can be studied by – (1) Spectrometer (2) Cathode ray oscilloscope (3) p - n junction diode (4) Sonometer

Last Answer : (4) Sonometer Explanation: A spectrometer is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. Cathode ray oscilloscope is an electronic display ... electron beam that is used to produce visible patterns or graphs on a phosphorescent screen.

The waveform of a certain signal can be studied by (1) Spectrometer (2) Cathode ray oscilloscope (3) p – n junction diode (4) Sonometer

Description : The waveform of a certain signal can be studied by (1) Spectrometer (2) Cathode ray oscilloscope (3) p – n junction diode (4) Sonometer

Last Answer : Sonometer

Remote-sensing device has an inbuilt source of – (1) X-ray (2) g-ray (3) Ultraviolet ray (4) Infrared ray

Description : Remote-sensing device has an inbuilt source of – (1) X-ray (2) g-ray (3) Ultraviolet ray (4) Infrared ray

Last Answer : (4) Infrared ray Explanation: Infrared imaging is used extensively for military and civilian purposes. Military applications include target acquisition, surveillance, night vision, homing ... , remote temperature sensing, short-ranged wireless communication, spectroscopy, and weather forecasting.

Remote-sensing device has an inbuilt source of (1) X-ray (2) g-ray (3) ultraviolet ray (4) infrared ray

Description : Remote-sensing device has an inbuilt source of (1) X-ray (2) g-ray (3) ultraviolet ray (4) infrared ray

Last Answer :  infrared ray

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

The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: w) ir x) ultra-violet y) rf z) gamma ray

Description : The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: w) ir x) ultra-violet y) rf z) gamma ray

Last Answer : ANSWER: X -- ULTRA-VIOLET

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

The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: A. I r B. ultra-violet C. r f D. gamma ray

Description : The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: A. I r B. ultra-violet C. r f D. gamma ray

Last Answer : B. ultra-violet

What is the main difference between X ray and cathode ray ?

Description : What is the main difference between X ray and cathode ray ?

Last Answer : X-ray electromagnetic wave with short wavelength. Cathode ray, on the other hand, is a stream of fast moving electron particles.

The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no

Description : The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no

Last Answer : A. The primary X-ray

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

What are the electromagnetic radiations of wavelengths less than 300 angstroms? A. X-rays B. Ultraviolet rays C. Infrared D. Microwaves

Description : What are the electromagnetic radiations of wavelengths less than 300 angstroms? A. X-rays B. Ultraviolet rays C. Infrared D. Microwaves

Last Answer : A. X-rays

Which of the following waves is not a transverse wave? w) a wave traveling on a string x) an electromagnetic wave y) a sound wave

Description : Which of the following waves is not a transverse wave? w) a wave traveling on a string x) an electromagnetic wave y) a sound wave

Last Answer : ANSWER: Y -- A SOUND WAVE

Of the following, the type of wave that CANNOT be polarized is w) electromagnetic x) light y) sound z) radio

Description : Of the following, the type of wave that CANNOT be polarized is w) electromagnetic x) light y) sound z) radio

Last Answer : ANSWER: Y -- SOUND

For an electromagnetic wave traveling in a vacuum, if the magnitude of the intensity of the E field is zero, the magnitude of the intensity of the B field is: w) zero x) a negative maximum y) a positive maximum z) the square root of 2 times the positive maximum

Description : For an electromagnetic wave traveling in a vacuum, if the magnitude of the intensity of the E field is zero, the magnitude of the intensity of the B field is: w) zero x) a negative maximum y) a positive maximum z) the square root of 2 times the positive maximum

Last Answer : ANSWER: W -- ZERO

An electromagnetic wave is ALWAYS: w) longitudinal x) polarized y) spherical z) transverse.

Description : An electromagnetic wave is ALWAYS: w) longitudinal x) polarized y) spherical z) transverse.

Last Answer : ANSWER: Z -- TRANSVERSE

In an electromagnetic wave, what is the relative orientation of the magnetic and electric fields? w) 180 degrees x) 90 degrees y) 45 degrees z) 22.5 degrees

Description : In an electromagnetic wave, what is the relative orientation of the magnetic and electric fields? w) 180 degrees x) 90 degrees y) 45 degrees z) 22.5 degrees

Last Answer : ANSWER: X -- 90 DEGREES

According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index m2); (A) The angle of incidence is equal to the angle of refraction (B) The angle of refraction r) is given by sin i (C) Both (a) and (b) (D) Neither (a) nor (b)

Description : According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index m2); (A) The angle of incidence is equal to the angle of refraction (B) The angle of ... r) is given by sin i (C) Both (a) and (b) (D) Neither (a) nor (b)

Last Answer : Answer: Option B

What is a cathode ray ?

Description : What is a cathode ray ?

Last Answer : The cathode ray is the electron that emits from the cathode of the electrostatic tube at low pressure and produces a refraction on the opposite wall of the dripping tube at approximately perpendicular speed of light.

In a cathode ray tube, electric and magnesity of the magnetic fields are simultaneously applied at right angles to each other and the intensity of the

Description : In a cathode ray tube, electric and magnesity of the magnetic fields are simultaneously applied at right angles to each other and the intensity of the

Last Answer : In a cathode ray tube, electric and magnesity of the magnetic fields are simultaneously applied at right angles to each ... 01 T` and `E=50,000 V//m`.

The forces of cathode ray particles due to electric and magnetic fields which are at right angles to each other balance each other. If the magnetic fi

Description : The forces of cathode ray particles due to electric and magnetic fields which are at right angles to each other balance each other. If the magnetic fi

Last Answer : The forces of cathode ray particles due to electric and magnetic fields which are at right angles to ... p.d. is required to produce this velocity?

Why did the deflection of the beam by magnet suggest that the cathode ray contained charged particles?

Description : Why did the deflection of the beam by magnet suggest that the cathode ray contained charged particles?

Last Answer : Need answer

What happens when cathode rays strike the glass walls of the cathode ray tube?

Description : What happens when cathode rays strike the glass walls of the cathode ray tube?

Last Answer : Feel Free to Answer

The first practical form of Random Access Memory was the __________ a) SSEM b) Cathode Ray Tube c) William’s Tube d) Thomas’s Tube

Description : The first practical form of Random Access Memory was the __________ a) SSEM b) Cathode Ray Tube c) William’s Tube d) Thomas’s Tube

Last Answer : Answer: c Explanation: The first practical form of RAM was the William’s Tube made in 1947. It stored data as electrically charged spots on the face of a Cathode Ray Tube

From which the cathode ray particles originate in a discharge tube?

Description : From which the cathode ray particles originate in a discharge tube?

Last Answer : Cathode

A squid axon is placed on stimulating electrodes, and an intracellular electrode is inserted and connected through a cathode-ray oscilloscope (CRO) to an indifferent electrode. When the axon is stimulated, the latent period is 1.5 ms. The intracellular electrode is 6 cm form the anode of the simulator and 4.5 cm from the cathode of the simulator. What is the conduction velocity of the axon. a. 15 m/s b. 30 m/s c. 40 m/s d. 67.5 m/s e. This cannot be determined from the information given

Description : A squid axon is placed on stimulating electrodes, and an intracellular electrode is inserted and connected through a cathode-ray oscilloscope (CRO) to an indifferent electrode. When the axon is stimulated, the latent ... . 40 m/s d. 67.5 m/s e. This cannot be determined from the information given

Last Answer : 30 m/s

CRT stands for: a) Ctrl, Refresh, Tab b) Cathode Ray Tube c) Catholic Ray Tuber d) None of These

Description : CRT stands for: a) Ctrl, Refresh, Tab b) Cathode Ray Tube c) Catholic Ray Tuber d) None of These

Last Answer : b) Cathode Ray Tube

CRT stands for: a) Compact Ray Tube b) Cathode Ray Tube c) Compatible Recognition Tool d) None of These

Description : CRT stands for: a) Compact Ray Tube b) Cathode Ray Tube c) Compatible Recognition Tool d) None of These

Last Answer : b) Cathode Ray Tube

Which of the following monitor types most closely resembles a television: a) flat panel b) cathode ray tube c) e - book reader d) data projector e) None of The Above

Description : Which of the following monitor types most closely resembles a television: a) flat panel b) cathode ray tube c) e - book reader d) data projector e) None of The Above

Last Answer : b) cathode ray tube

From which the cathode ray particles originate in a discharge tube

Description : From which the cathode ray particles originate in a discharge tube

Last Answer : Cathode

The ___ provides the visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope

Description : The ___ provides the visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope

Last Answer : CRT

Considered as the "heart" of the cathode ray oscilloscope.

Description : Considered as the "heart" of the cathode ray oscilloscope.

Last Answer : cathode ray tube (CRT)

CRT stands for: a. Cathode ray tube b. Compared ray tube c. Command ray tube d. None of these

Description : CRT stands for: a. Cathode ray tube b. Compared ray tube c. Command ray tube d. None of these

Last Answer : a. Cathode ray tube

.What is The Full form of CART A)Computer Analysis and Response Team B) Cathode Analog Ray Tube C)Computer Accessories Repairing team D)None

Description : .What is The Full form of CART A)Computer Analysis and Response Team B) Cathode Analog Ray Tube C)Computer Accessories Repairing team D)None

Last Answer : A)Computer Analysis and Response Team

What is The Full form of CART A)Computer Analysis and Response Team B) Cathode Analog Ray Tube C)Computer Accessories Repairing team D)None

Description : What is The Full form of CART A)Computer Analysis and Response Team B) Cathode Analog Ray Tube C)Computer Accessories Repairing team D)None

Last Answer : A)Computer Analysis and Response Team