Physics One liner Question and Answers

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physics One liner Question and Answers


421.
The danger signals are red while the eye is more sensitive to yellow because.


422.
A TV channel characterized by -


423.
Mechanical energy is countered into electrical energy


424.
Who discovered X-Rays?


425.
The process by which sunlight reaches to earth--..


426.
X-rays are ----------.. waves.


427.
Which scale is used to measure the intensity of earthquake?


428.
The Unit of noise pollution (level) is


429.
The use of Decibel unit is ----


430.
What is Decibel?


431.
Noise is measure in?


432.
The Permissible noise level at Residential area during time is


433.
The range of frequency of ultrasonic wave.


434.
Wavelength of visible spectrum is -


435.
Supersonic air plane creates a shock wave called


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