Q. It is believed that the universe is expanding and hence the distant stars are receding from us. Light from such a star will show
A) Shift in frequency towards longer wavelengths
B) Shift in frequency towards shorter wavelengths
C) No shift in frequency but a decrease in intensity
D) A shift in frequency sometimes towards longer and sometimes towards shorter wavelengths
Explanation
The correct answer is Option A: Shift in frequency towards longer wavelengths.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.