NEET Physics Huygens Principle Assertion Reason Question
Assertion (A): The absence of a backwave in Huygens' principle is satisfactorily explained by the assumption that the amplitude of secondary wavelets is zero in the backward direction. | Reason (R): Huygens' principle postulates that each point on a wavefront is a source of secondary wavelets that spread out in all directions.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
The assertion is false because Huygens' assumption regarding the absence of the backwave is not considered satisfactory. The reason is true as per Huygens' principle's description of secondary wavelets.
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