1
JEE Advanced 2019 Paper 2 Offline
Numerical
+3
-0
A perfectly reflecting mirror of mass M mounted on a spring constitutes a spring-mass system of angular frequency $$\Omega $$ such that $${{4\pi M\Omega } \over h} = {10^{24}}{m^{ - 2}}$$ with h as Planck's constant. N photons of wavelength $$\lambda $$ = 8$$\pi $$ $$ \times $$ 10$$ - $$6 m strike the mirror simultaneously at normal incidence such that the mirror gets displaced by 1 $$\mu $$m. If the value of N is x $$ \times $$ 1012, then the value of x is ................ [Consider the spring as massless]
![JEE Advanced 2019 Paper 2 Offline Physics - Dual Nature of Radiation Question 20 English](https://imagex.cdn.examgoal.net/1kt128jll/37b8c55b-a393-4e78-8c31-688d7d3e6be2/a2d3a290-0ae5-11ec-ad2d-cff39a9e6a15/file-1kt128jlm.jpeg)
![JEE Advanced 2019 Paper 2 Offline Physics - Dual Nature of Radiation Question 20 English](https://imagex.cdn.examgoal.net/1kt128jll/37b8c55b-a393-4e78-8c31-688d7d3e6be2/a2d3a290-0ae5-11ec-ad2d-cff39a9e6a15/file-1kt128jlm.jpeg)
Your input ____
2
JEE Advanced 2018 Paper 2 Offline
Numerical
+3
-0
In a photoelectric experiment a parallel beam of monochromatic light with power of $$200$$ $$W$$ is incident on a perfectly absorbing cathode of work function $$6.25$$ $$ev.$$ The frequency of light is just above the threshold frequency so that the photoelectrons are emitted with negligible kinetic energy. Assume that the photoelectron emission efficiency is $$100\% $$. A potential difference of $$500$$ $$V$$ is applied between the cathode and the anode. All the emitted electrons are incident normally on the anode and are absorbed. The anode experiences a force $$F = n \times {10^{ - 4}}$$ $$N$$ due to the impact of the electrons. The value of $$n$$ is ______________. Mass of the electron $${M_e} = 9 \times {10^{ - 31}}\,kg$$ and $$1.0eV = 1.6 \times {10^{ - 19}}\,J.$$
Your input ____
3
JEE Advanced 2015 Paper 2 Offline
Numerical
+4
-0
An electron in an excited state of Li2+ ion has angular momentum $${{3h} \over {2\pi }}$$. The de Broglie wavelength of the electron in this state is p$$\pi$$a0 (where a0 is the Bohr radius). The value of p is
Your input ____
4
JEE Advanced 2013 Paper 1 Offline
Numerical
+3
-0
The work functions of silver and sodium are 4.6 and 2.3 eV, respectively. The ratio of the slope of the stopping potential versus frequency plot for silver to that of sodium is ___________.
Your input ____
Questions Asked from Dual Nature of Radiation (Numerical)
Number in Brackets after Paper Indicates No. of Questions
JEE Advanced 2023 Paper 1 Online (1)
JEE Advanced 2021 Paper 2 Online (1)
JEE Advanced 2019 Paper 2 Offline (1)
JEE Advanced 2018 Paper 2 Offline (1)
JEE Advanced 2015 Paper 2 Offline (1)
JEE Advanced 2013 Paper 1 Offline (1)
IIT-JEE 2012 Paper 1 Offline (1)
IIT-JEE 2011 Paper 1 Offline (1)
IIT-JEE 2011 Paper 2 Offline (1)
IIT-JEE 2010 Paper 1 Offline (1)
JEE Advanced Subjects
Physics
Mechanics
Units & Measurements Motion Laws of Motion Work Power & Energy Impulse & Momentum Rotational Motion Properties of Matter Heat and Thermodynamics Simple Harmonic Motion Waves Gravitation
Electricity
Electrostatics Current Electricity Capacitor Magnetism Electromagnetic Induction Alternating Current Electromagnetic Waves
Optics
Modern Physics
Chemistry
Physical Chemistry
Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Chemical Equilibrium Ionic Equilibrium Solutions Thermodynamics Chemical Kinetics and Nuclear Chemistry Electrochemistry Solid State Surface Chemistry
Inorganic Chemistry
Periodic Table & Periodicity Chemical Bonding & Molecular Structure Isolation of Elements Hydrogen s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Salt Analysis
Organic Chemistry
Mathematics
Algebra
Quadratic Equation and Inequalities Sequences and Series Mathematical Induction and Binomial Theorem Matrices and Determinants Permutations and Combinations Probability Vector Algebra 3D Geometry Statistics Complex Numbers
Trigonometry
Coordinate Geometry
Calculus