In which one of the following pairs of experimental observations and phenomena does the experimental observation correctly account for the phenomenon?

  • A
    $X$-ray spectra: Charge on the nucleus
  • B
    $\alpha$-particle scattering: Quantized electron orbit
  • C
    Emission spectra: The quantization of energy
  • D
    The photoelectric effect: The nuclear atom

Explore More

Similar Questions

The energy of a photon is calculated by ......

The emission spectrum of a gaseous atom is line-based and not continuous. Why?

An electron revolves in an orbit around a stationary nucleus with atomic number $Z = 5$. The energy required to excite the electron from the $3^{rd}$ orbit to the $4^{th}$ orbit is .......... $eV$.

$A$ $100 \, W$ bulb emits monochromatic light of wavelength $400 \, nm$. Calculate the number of photons emitted per second by the bulb.

Find the energy of each of the photons which:
$(i)$ correspond to light of frequency $3 \times 10^{15} \, Hz$
$(ii)$ have a wavelength of $0.50 \, \mathring{A}$

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo