KCET · Physics · Wave Optics
The polarizing angle of glass is \( 57^{\circ} \). A ray of light which is incident at this angle will have an
angle of refraction as
- A \(25^{\circ}\)
- B \( 33^{\circ} \)
- C \( 43^{\circ} \)
- D \( 38^{\circ} \)
Answer & Solution
Correct Answer
(B) \( 33^{\circ} \)
Step-by-step Solution
Detailed explanation
Given, polarising angle of glass, \( i_{p}=57^{\circ} \)
We know that, when the light is incident at polarising angle then reflected and refracted rays are at right angles to each
other.
Therefore,
\[
r=90^{\circ}-i_{p}=90-57=33^{\circ}
\]
Therefore, angle of refraction is \( 33^{\circ} \).
We know that, when the light is incident at polarising angle then reflected and refracted rays are at right angles to each
other.
Therefore,
\[
r=90^{\circ}-i_{p}=90-57=33^{\circ}
\]
Therefore, angle of refraction is \( 33^{\circ} \).
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- A susceptibility of a certain magnetic material is \( 400 \). What is the class of the magnetic material \( ? \)KCET 2014 Medium
- A thick metal wire of density \(\rho\) and length \(L\) is hung from a rigid support. The increase in length of the wire due to its own weight is ( \(Y=\) Young's modulus of the material of the wire)KCET 2024 Medium
- A person with vibrating tuning fork of frequency \(338 \mathrm{~Hz}\) is moving towards a vertical wall with a speed of \(2 \mathrm{~ms}^{-1}\). Velocity of sound in air is \(340 \mathrm{~ms}^{-1}\). The number of beats heard by that person per second isKCET 2013 Easy
- A monochromatic beam of light is travelling from medium \(A\) of refractive index \(n_{1}\) to a medium \(\mathrm{B}\) of refractive index \(\mathrm{n}_{2}\). In the medium \(A\), there are \(x\) number of waves in certain distance. In the medium B, there are \(y\) number of waves in the same distance. Then, refractive index of medium \(A\) with respect to medium \(B\) isKCET 2012 Hard
- The kinetic energy of an electron gets tripled, then the de-Broglie wavelength associated with it changes by a factorKCET 2009 Medium
- Electrical as well as gravitational affects can be thought to be caused by fields. Which of the following is true for an electrical or gravitational field?KCET 2022 Easy
More PYQs from KCET
- The state of hybrid orbitals of carbon in \( \mathrm{CO}_{2}, \mathrm{CH}_{4} \) and \( \mathrm{CO}_{3}{ }^{2-} \) respectively isKCET 2018 Easy
- One of the side-effect of the use of anabolic steroids in femalesKCET 2022 Medium
- Identify the incorrect statement regarding the flow of energy between various components of the food chain.KCET 2023 Hard
- Water is in streamline flows along a horizontal pipe with non-uniform cross-section. At a point in the pipe where the area of cross-section is \(10 \mathrm{~cm}^{2}\), the velocity of water is \(1 \mathrm{~ms}^{-1}\) and the pressure is \(2000 \mathrm{~Pa}\). The pressure at another point where the cross-sectional area is \(5 \mathrm{~cm}^{2}\) isKCET 2010 Hard
- Which of the following can be measured by the Ostwald-Walker dynamic method?KCET 2008 Easy
- The activation energy for the reaction \(X \rightarrow Y\) is \(150\text{ kJ mol}^{-1}\). The change in enthalpy for the above reaction is \(-135\text{ kJ mol}^{-1}\). Then the activation energy for \(Y \rightarrow X\) isKCET 2026 Easy