MCQ
Which of the following statements is correct?
- ADuring hot summer days, the trees and other tall objects seem to be quivering because the density of air changes in an irregular way
- BWhen the moon is near the horizon it appears bigger. This is due to optical illusion
- CIf the critical angle for the medium of a prism is $\theta_c$ and the angle of prism is $A$, there will be no emergent ray when $A > 2 \theta_c$
- ✓All of these

