JEE Mains · Physics · STD 12 - Atoms
- JEE Mains 2014
- Medium
- MCQ
Match List \(- I\) (Experiment performed) with List \(-II\) (Phenomena discovered/associated) and select the correct option from the options given the lists
| List \(- I\) | List \(- II\) |
| \((1)\) Davisson and Genner | \((i)\) Wave nature of electrons |
| \((2)\) Millikan's oil drop experiment | \((ii)\) Charge of an electron |
| \((3)\) Rutherford experiment | \((iii)\) Quantisation of energy levels |
| \((4)\) Franck-Hertz experiment | \((iv)\) Existence of nucleus |
Pick an option to check your answer.
Answer & Solution
Correct Answer
(B) \((1 )-(i), (2)-(ii), (3)-(iv), ( 4)-(iii)\)
Step-by-step Solution
Detailed explanation
\((1)\) Davisson and Gemner experiment-wave nature of electrons.
\((2)\) Millikan's oil drop experiment - charge of an electron.
\((3)\) Rutherford experiment - Existance of nucleus.
\((4)\) Frank-Hertz experiment - Quantisation of energy levels.
\((2)\) Millikan's oil drop experiment - charge of an electron.
\((3)\) Rutherford experiment - Existance of nucleus.
\((4)\) Frank-Hertz experiment - Quantisation of energy levels.
More questions from Physics
- A battery of \(6\,V\) is connected to the circuit as shown below. The current I drawn from the battery is:
JEE Mains 2022 Medium - A two point charges \(4 q\) and \(-q\) are fixed on the \(x-\)axis at \(x=-\frac{d}{2}\) and \(x=\frac{d}{2},\) respectively. If a third point charge \('q'\) is taken from the origin to \(x = d\) along the semicircle as shown in the figure, the energy of the charge will
JEE Mains 2020 Hard - The following logic gate is equivalent to
JEE Mains 2021 Medium - When two resistance \(R_1\) and \(R_2\) connected in series and introduced into the left gap of a meter bridge and a resistance of \(10 \Omega\) is introduced into the right gap, a null point is found at \(60 cm\) from left side. When \(R_1\) and \(R_2\) are connected in parallel and introduced into the left gap, a resistance of \(3 \Omega\) is introduced into the right-gap to get null point at 40 cm from left end. The product of \(R_1 R_2\) is \(.............\Omega\)JEE Mains 2023 Hard
- In the potentiometer, when the cell in the secondary circuit is shunted with 4 \(\Omega\) resistance, the balance is obtained at the length 120 cm of wire. Now when the same cell is shunted with 12 \(\Omega\) resistance, the balance is shifted to a length of 180 cm. The internal resistance of cell is ___________ \(\Omega\).JEE Mains 2026 Medium
- The radius of electron's second stationary orbit in Bohr's atom is \(R\). The radius of the third orbit will beJEE Mains 2023 Medium
More PYQs from JEE Mains
- Two long parallel wires \(X\) and \(Y\), separated by a distance of 6 cm , carry currents of 5A and 4A, respectively, in opposite directions as shown in the figure. Magnitude of the resultant magnetic field at point P at a distance of 4 cm from wire Y is \(x \times 10^{-5} \mathrm{~T}\). The value of \(x\) is__________ . Take permeability of free space as \(\mu_0=4 \pi \times 10^{-7} \mathrm{SI}\) units.
JEE Mains 2025 Easy - A green light is incident from the water to the air - water interface at the critical angle \((\theta)\). Select the correct statement .JEE Mains 2014 Easy
- A ray of light of intensity \(I\) is incident on a parallel glass slab at point \(A\) as shown in diagram. It undergoes partial reflection and refraction. At each reflection, \(25\%\) of incident energy is reflected. The rays \(AB\) and \(A'B'\) undergo interference. The ratio of \(I_{max}\) and \(I_{min}\) is
JEE Mains 2013 Hard - \(n\) mole a perfect gas undergoes a cyclic process \(ABCA\) (see figure) consisting of the following processes. \(A \rightarrow B :\) Isothermal expansion at temperature \(T\) so that the volume is doubled from \(V _{1}\) to \(V _{2}=2 V _{1}\) and pressure changes from \(P _{1}\) to \(P _{2}\) \(B \rightarrow C :\) Isobaric compression at pressure \(P _{2}\) to initial volume \(V _{1}\) \(C \rightarrow A\) : Isochoric change leading to change of pressure from \(P _{2}\) to \(P _{1}\) Total workdone in the complete cycle \(ABCA\) is
JEE Mains 2021 Hard