General Science MCQ’shttps://www.onlinegktest.in/science-quiz1/
21) Steel is more elastic than rubber because
Ans) Steel is harder than rubber
22) Source of a remote sensing device has
Ans) Infrared ray
23) Which type of waves are required for long-range wireless communication (general science objective questions)
Ans) Radio waves
24) What type of waves are used in night vision equipment
Ans) Infrared waves
25) Coolidge-tube is used to produce
Ans) X-rays
A collection of General Science Questions Asked in Various Exams
26) Sound signals of television are ( General Science Objective Questions)
Ans) Frequency Modulated
27) In which form sounds travels
Ans) Longitudinal wave
28) Which devices convert sound energy into electrical energy
Ans) Microphone
29) Which device is used for object detection in the deep sea
Ans) Sonar
30) Where sound waves cannot be transmitted
Ans) In Vaccum
