GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
34. | Stars twinkle because | |
A. | the intensity of light emitted by them changes with time | |
B. | the distance of the stars from the earth changes with time | |
C. | the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time | |
D. | the light from the star is scattered by the dust particles and air molecules in the earth's atmosphere | |