Select from the following the best experimental  set-up for tracing the path of a ray of light passing  through a rectangular glass slab: 

Question 7 [CBSE Delhi, 2016].jpg

(a) P 

(b) Q  

(c) R 

(d) S  



In the rectangular glass slab experiment, we ensure that

  • Normal is in the middle of the 
  • Angle of incidence is 45 °

Rectangular glass slab Experiment.jpg

Since only case Q satisfies both conditions

So, the correct answer is (b) Q

  1. Class 10
  2. Chapter 10 Class 10 - Light - Reflection and Refraction (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo