# Wave Optics - Online Test

Q1. Two sources of light are coherent if they have
Explaination / Solution:
No Explaination.

Q2. Interference effects of light from two sources can be observed if
Explaination / Solution:

If the two sources are coherent, then the phase difference φ at any point will not change with time and we will have a stable interference pattern; i.e., the positions of maxima and minima will not change with time.

Q3. If we have two coherent sources  vibrating in phase, then for an arbitrary point P constructive interference is observed whenever the path difference is
Explaination / Solution:
No Explaination.

Q4.
If we have two coherent sources  vibrating in phase, then for an arbitrary point P destructive interference is observed whenever the path difference is

Explaination / Solution:
No Explaination.

Q5.
If we have two coherent sources  vibrating in phase with same amplitude, then for an arbitrary point P with path difference corresponding to  , the resultant intensity if the intensity due to each is I0 would be

Explaination / Solution:
No Explaination.

Q6. Referring to the Young’s double slit experiment, Phase difference corresponding to a Path Difference of λ /3 is
Explaination / Solution:
No Explaination.

Q7. Referring to the Young’s double slit experiment, Path Difference corresponding to a Phase difference of π/3 is
Explaination / Solution:
No Explaination.

Q8. Referring to the Young’s double slit experiment, if D and d are distance from slit to screen and screen center to point P fringe width is given by
Explaination / Solution:
No Explaination.

Q9. In general the term diffraction is used
Explaination / Solution:
No Explaination.

Q10. Diffraction also refers to
Explaination / Solution:
No Explaination.