Under what conditions are cathode rays produced in a disc...
Under what conditions are cathode rays produced in a discharge tube?
High pressure and low voltage
High pressure and high voltage
Low pressure and low voltage
Low pressure and high volatge
Correct answer is D
Cathode rays are produced in a discharge tube under Low pressure and high voltage
A device that converts sound energy into electrical energy is? ...
Body floats in fluid when its …………………...
Which of the following statements about X-rays is not correct? They ...
When a yellow card is viewed in blue light, It will appear ...
Which of the following statements about solid friction are correct? It i. is a force ii. occurs ...
The pair of musical instruments that works on the vibration of air in pipes is ...