Which of the following statement is not correct about the characteristics of cathode rays?
A. Characteristics of cathode rays depend upon the nature of gas present in the cathode ray tube
B. Characteristics of cathode rays do not depend upon the material of electrodes in cathode ray tube
C. They travel in straight line in the absence of an external electrical or magnetic field.
D. They start from the cathode and move towards the anode.
Answer:C
Which of the following statement is not correct about the characteristics of cathode rays?
A. Characteristics of cathode rays depend upon the nature of gas present in the cathode ray tube B. Characteristics of cathode rays do not depend upon the material of electrodes in cathode ray tube C. They travel in straight line in the absence of an external electrical or magnetic field. D. They start from the cathode and move towards the anode.