Optics Question 70
Question: Assertion : In Hertz experiment, the electric vector of radiation produced by the source gap is parallel to the gap. Reason : Production of sparks between the detector gap is maximum when it is placed perpendicular to the source gap.
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: C
Solution:
Hertz experimentally observed that the production of spark between the detector gap is maximum when it is placed parallel to source gap.
This means that the electric vector of radiation produced by the source gap is parallel to the two gaps i.e., in the direction perpendicular to the direction of propagation of the radiation.
