- ARotation of frame of reference
- BTranslation of frame of reference
- ✓Rotation of vector
- DBoth $(a)$ and $(c)$
Change in a vector may occur due to rotation of vector and not due to rotation of frame of reference.
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$(A)$ If $\mathrm{d}=\lambda$, the screen will contain only one maximum
$(B)$ If $\lambda<\mathrm{d} < 2 \lambda$, at least one more maximum (besides the central maximum) will be observed on the screen
$(C)$ If the intensity of light falling on slit $1$ is reduced so that it becomes equal to that of slit $2$ , the intensities of the observed dark and bright fringes will increase
$(D)$ If the intensity of light falling on slit $2$ is increased so that it becomes equal to that of slit $1$ , the intensities of the observed dark and bright fringes will increase