CUET · PHYSICS · PYQ PAPER 2023
A monochromatic light wave is travelling in vacuum along the direction \(\frac{1}{\sqrt{2}}(\hat{i}+\hat{j})\).
The wavefront of the light wave is represented by:
- A \(x=\) constant
- B \(z=\) constant
- C \(x+y+3=\) constant
- D \(x+y=\) constant
Answer & Solution
Correct Answer
(D) \(x+y=\) constant
Step-by-step Solution
Detailed explanation
The direction of propagation is along \((\hat{i}+\hat{j})\). The wavefront is a surface perpendicular to the direction of propagation. Thus, the wavefront is represented by \(x+y=\) constant.
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