Physicseasy · Past Paper
Twinkling of stars is due to:
AReflection
BAtmospheric refraction
CDispersion
DInternal reflection
✓ Correct Answer: B — Atmospheric refraction
Continuous changes in the atmosphere's refractive index cause the apparent position of stars to fluctuate.
Share this question
More from Physics
- What is the magnification (m) of a plane mirror?
- The instrument used to measure electric current in a circuit is called a/an:
- If the speed of light in a medium is 1.5 x 10^8 m/s, what is the critical angle for that medium with respect to air?
- If air resistance is taken into account for a ball thrown upwards, the time of ascent is ______ the time of descent.
- The unit of refractive index is: