KCET · Physics · Dual Nature of Matter
G P Thomson experimentally confirmed the existence of matter waves by the phenomena
- A diffraction
- B refraction
- C polarisation
- D scattering
Answer & Solution
Correct Answer
(A) diffraction
Step-by-step Solution
Detailed explanation
G P Thomson experimentally confirmed the existence of matter waves (de-Broglie's hypothesis) by demonstrating that electron beams are diffracted when they are scattered by the regular atomic arrays of crystals.
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
- 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
- Pick out the WRONG statements about magnetic substances.
(\(\chi\) = magnetic susceptibility)
(\(\mu_r\) = relative permeability).
I. Substances with \(-1 \leq \chi < 0\) are diamagnetic.
II. Substances with \(\chi \gg 1\) are paramagnetic.
III. Substances with \(\chi \ll 1\) are ferromagnetic.
IV. Substances with \(\mu_r \gg 1\) are ferromagnetic.KCET 2026 Medium - A ray of light is incident normally on one face of a right angled isosceles prism. It then grazes the hypotenuse. The refractive index of the material of the prism isKCET 2007 Medium
- A potentiometer has a uniform wire of length \(5 \mathrm{~m}\). A battery of emf \(10 \mathrm{~V}\) and negligible internal resistance is connected between its ends. A secondary cell connected to the circuit gives balancing length at \(200 \mathrm{~cm}\). The emf of the secondary cell isKCET 2020 Medium
- A proton and helium nucleus are shot into a magnetic field at right angles to the field with same kinetic energy. Then the ratio of their radii isKCET 2013 Easy
- An electric dipole is kept in non-uniform electric field. It generally experiencesKCET 2019 Easy
More PYQs from KCET
- In a dihybrid cross between a true breeding round yellow seeded and true breeding wrinkled green seeded pea plant, the ratio of segregation of round and wrinkled seed traits in F2 isKCET 2024 Easy
- The measure of the angle between the lines \(x = k + 1, y = 2k - 1, z = 2k + 3, k \in \mathbb{R}\) and \(\dfrac{x - 1}{2} = \dfrac{y - 2}{1} = \dfrac{z - 3}{1}\) isKCET 2026 Medium
- The organisms which completely lack a cell wall and can live without oxygen areKCET 2015 Hard
- In the reaction between hydrogen sulphide and acidified permanganate solution,KCET 2025 Medium
- In anomalous expansion of water, at what temperature, the density of water is maximum ?KCET 2014 Medium
- Phenol \(\stackrel{X}{\longrightarrow}\) forms a tribromo derivative. "X" isKCET 2010 Medium