Dual Nature of Radiation PYQs - Last 5 Years
WB JEE / Physics / Modern Physics / 6 recent questions
PhysicsModern Physics2022-2026
Practice 6 WB JEE Physics questions from Dual Nature of Radiation. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Last 5 Years Dual Nature of Radiation Questions
Showing 6 of 6 filtered questions.
1Dual Nature Of Radiation
Radiation of wavelength $\lambda$ is incident on a photocell．The fastest emitted electron has speed $v$ . If the wavelength is changed to $\frac{3 \lambda}{4}$ ，then the speed of the fastest emitted electron will be
MCQM+1 / -0.252026
2Dual Nature Of Radiation
$10^{20}$ photons of wavelength 660 nm are emitted per second from a lamp. The wattage of the lamp is (Planck's constant $=6.6 \times 10^{-34} \mathrm{Js}$ )
MCQ+2 / -0.52025
3Dual Nature Of Radiation
The de-Broglie wavelength of a moving bus with speed $v$ is $\lambda$. Some passengers left the bus at a stoppage. Now when the bus moves with twice of its initial speed, its kinetic energy is found to be twice of its initial value. What is...
MCQ+1 / -0.252025
4Dual Nature Of Radiation
An electron in Hydrogen atom jumps from the second Bohr orbit to the ground state and the difference between the energies of the two states is radiated in the form of a photon. This photon strikes a material. If the work function of the mat...
MCQ+1 / -0.252025
5Dual Nature Of Radiation
A beam of light of wavelength \(\lambda\) falls on a metal having work function \(\phi\) placed in a magnetic field B. The most energetic electrons, perpendicular to the field are bent in circular arcs of radius R. If the experiment is perf...
MCQ+1 / -0.252024
6Dual Nature Of Radiation
Monochromatic light of wavelength \(\lambda=4770 \mathop A\limits^o\) is incident separately on the surfaces of four different metals A, B, C and D. The work functions of A, B, C and D are $$4.2 \mathrm{~eV}, 3.7 \mathrm{~eV}, 3.2 \mathrm{...
MCQM+2 / -02024