In the experiment to trace the path of a ray of light through a rectangular glass slab using pins P1, P2, P3 and P4, four students did the following:

A: looked at heads of P1 and P2 while placing P3, and heads of P1, P2 and P3 while placing P4.

B: looked at feet of P1 and P2 while placing P3, and feet of P1, P2 and P3 while placing P4.

C: looked at heads of P1 and P2 while placing P3, and feet of all the pins while placing P4.

D: looked at feet of P1 and P2 while placing P3, and heads of all the pins while placing P4.

The correct procedure is that of student:

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

The correct procedure to trace the path of a ray of light through a rectangular glass slab using four pins is to look at feet of P1 and P2 while placing P3, and feet of P1, P2 and P3 while placing P4.
While performing this experiment, the pins P1 and P2 should not be placed too close to each other. Otherwise, it would be really difficult to align the light passing through them when seen from another side of the slab. And from the other side, we need to focus on the feet of the pins and then give points that are in line with those two pins.

Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

🔥 Start Your JEE/NEET Prep at Just ₹1999 / month - Limited Offer! Check Now!

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET