JEE AdvancedPhysicsAtoms and NucleiMCQ+3 / −1
The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. The smallest wavelength in the infrared region of the hydrogen spectrum (to the nearest integer) is
- A802 nm
- B823 nm
- C1882 nm
- D1648 nm
More from Atoms and Nuclei
- List-I shows various functional dependencies of energy on the atomic number . Energies associated with certain phenomena are given in List-II. Choose the option that describes the correct match between the entries in List-I to… Includes table2025 · MCQ
- A particle of mass is moving in a circular orbit under the influence of the central force , corresponding to the potential energy , where is a positive force constant and is the radial distance from…2024 · Multiple correct
- List-I shows different radioactive decay processes and List-II provides possible emitted particles. Match each entry in List-I with an appropriate entry from List-II, and choose the correct option. Includes table2023 · MCQ
- In a radioactive decay process, the activity is defined as , where is the number of radioactive nuclei at time . Two radioactive sources, and have same activity at time . At a later time, the…2023 · Numerical
- The minimum kinetic energy needed by an alpha particle to cause the nuclear reaction in a laboratory frame is (in .…2022 · Numerical
- The binding energy of nucleons in a nucleus can be affected by the pairwise Coulomb repulsion. Assume that all nucleons are uniformly distributed inside the nucleus. Let the binding energy of a proton be and the binding energy…2022 · Multiple correct
- In a radioactive decay chain reaction, nucleus decays into nucleus. The ratio of the number of to number of particles emitted in this process is …2022 · Numerical
- A heavy nucleus Q of half-life 20 minutes undergoes alpha-decay with probability of 60% and beta-decay with probability of 40%. Initially, the number of Q nuclei is 1000. The number of alpha-decays of Q in the first one hour is2021 · MCQ