Dual Nature Of Light Question 15
Question: Assertion : An electric field is preferred in comparison to magnetic field for detecting the electron beam in a television picture tube. Reason : Electric field require low voltage.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: D
Solution:
If electric field is used for detecting the electron beam, then very high voltage will have to be applied or very long tube will have to be taken.
BETA
