A bubble in glass slab \((\mu = 1.5)\) when viewed from one side appears at \(5\) cm and \(2\) cm when viewed from the other side. The thickness of the slab is:
1. \(3.75\) cm
2. \(3\) cm
3. \(10.5\) cm
4. \(2.5\) cm

Subtopic:  Refraction at Plane Surface |
 85%
Level 1: 80%+
AIPMT - 2000
Hints
Links

A ray of light travelling in the air has wavelength \(\lambda\), frequency \(n\), velocity \(v\), and intensity \(I\). If this ray enters into water then these parameters are \(\lambda', n', v'\) and \(I'\) respectively. Which relation is correct?
1. \(\lambda = \lambda'\)
2. \(n=n'\)
3. \(v=v'\)
4. \(I=I'\)

Subtopic:  Refraction at Plane Surface |
 85%
Level 1: 80%+
AIPMT - 2001
Hints
Links

premium feature crown icon
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from:
1. Two points propagating in two different parallel directions
2. One point propagating in two different directions through the slab
3. One point propagating in the same direction through the slab
4. Two points propagating in two different non-parallel directions
Subtopic:  Refraction at Plane Surface |
 57%
Level 3: 35%-60%
AIPMT - 2004
Hints
Links

advertisementadvertisement