When two different waves having different velocities are overlap with each other and produce a new one it is called Interference. In the case of rain water it happens.
37) On a rainy day, small oil films on water show brilliant colours. This is due to
Answer is:
interference
Explanation:
Related General Physics MCQ with Answers
Answer is:
move towards B
Explanation:
Electron will move towards the high potential i.e. B point because if there is any potential difference the elecric line of forces terminate from higher to lower potential.
Answer is:
surface tension
Explanation:
Materials used to make raincoats have high surface tension because due to surface tension water droplets do not stick to the material.
Answer is:
detecting and locating the position of objects such as aeroplanes
Explanation:
RADAR standa = Radio Detection And Ranging And It Is Used For Detecting And Locating The Position Of Objects Such As Aeroplanes.
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)