Question : ______ waves include visible light waves, X-rays, gamma rays, radio waves, microwaves, ultraviolet and infrared waves.
Option 1: Electromagnetic
Option 2: Mechanical
Option 3: Magnetic
Option 4: Electric
Correct Answer: Electromagnetic
Solution : The correct answer is Electromagnetic.
Electromagnetic radiation includes visible light, gamma rays, radio waves and all other forms of electromagnetic radiation. A stream of massless particles called photons, which move at the speed of light in a wave-like pattern, can be used to represent electromagnetic radiation.
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Question : ______ are also known as heat waves.
Option 1: Infrared waves
Option 2: Gamma rays
Option 3: Light waves
Option 4: X-rays
Question : Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength.
Option 1: Microwave, infrared, visible, X-rays
Option 2: X-rays, visible, infrared, Microwave
Option 3: Visible, infrared, microwave, X-ray
Option 4: X-rays, infrared, visible, microwave
Question : Which of the following waves has the highest frequency?
Option 1: Radio
Option 2: Infrared
Option 3: Microwaves
Option 4: Gamma-rays
Question : In a filament-type light bulb, most of the electric power consumed appears as
Option 1: visible light
Option 2: infrared rays
Option 3: ultraviolet rays
Option 4: fluorescent light
Question : ________ are used for communication in artificial satellites.
Option 2: Radio waves
Option 3: Ultraviolet (UV) rays
Option 4: Amplitude Modulation (AM) waves
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