Which of the following statements are incorrect?
A. The cathode rays start from anode and move towards the cathode.
B. The characteristics of cathode rays do not depend upon the nature of the gas present in the cathode ray tube.
C. In cathode ray tube, the electrical discharge through the gases could be observed only at very high pressure and at very high voltages.
D. In the absence of electrical or magnetic field, the behaviour of cathode rays are similar to that expected from negatively charged particles.
E. In the absence of electrical or magnetic field, these rays travel in straight lines.
Choose the correct answer from the options given below.
Text Solution
Verified by ExpertsB
Among the given statements, only A, C and D are incorrect while the statements B and E are correct. The corrected forms of 
and 
are The cathode rays start from cathode and move towards anode.
• In cathode ray tube, the electrical discharge through the gases could be observed only at very low pressure and at very high voltages.
• In the presence of electrical or magnetic field, the behaviour of cathode rays are similar to that expected from negatively charged particles.
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