Q. How many wavelengths of the ${Kr}^{89}$ are there in one metre?

A) 658189.63
B) 2348123.73
C) 1650763.73
D) 1553164.12
Explanation

The correct answer is Option C: 1650763.73.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.