- 120°
- 90°
- 60°
- None of these
- has a period of 12 hours
- is stationary in space
- revolves from west to east in the equatorial plane
- revolves from east to west in the equatorial plane
- less than one
- equal to one
- equal to or less than one
- equal to or greater than one
- g, in downward direction
- g, in upward direction
- 2g, in downward direction
- 2g, in upward direction
- increases with time
- decreases with time
- does not change
- none of above
- The fringe width increases
- The fringe width decreases
- The fringe width remains the same but the pattern shifts
- The fringe pattern disappears
- acceleration due to gravity
- gravitational potential
- universal gravitational constant
- gravitational field strength
- Refraction
- Dispersion
- Total internal reflection
- Scattering
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