RADAR standa = Radio Detection And Ranging And It Is Used For Detecting And Locating The Position Of Objects Such As Aeroplanes.
40) RADAR is used for
Answer is:
detecting and locating the position of objects such as aeroplanes
Explanation:
Related General Physics MCQ with Answers
Answer is:
infrasonic
Explanation:
Infrasonic : less than 20Hz (can not be heard by humans) Ultrasonic : between 20Hz and 20kHz (can be heard by humans) Supersonic : more than 20kHz (can not be heard by humans)
Answer is:
cohesion of mercury is greater than its adhesion with glass
Explanation:
Cohesion is nothing but attraction between two atoms.
Answer is:
increase its electrical conductivity
Explanation:
This principle is known as Doping. Adding of an impurity to a pure semi conductor in order to increase certain properties.
Answer is:
the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
Explanation:
The scientific name for the twinkling of stars is stellar scintillation (or astronomical scintillation). Stars twinkle when we see them from the Earth's surface because we are viewing them through thick layers of turbulent (moving) air in the Earth's atmosphere.