Planck's equation is:
Correct answer: C. E=hν
- A. E=mc2
- B. mvr=nh/2π
- C. E=hν
- D. λ=h/mv
Explanation
Planck's equation describes the relationship between the energy of a photon and its frequency. The most common form of Planck's equation is:E = hνWhere:E is the energy of the photon.h is Planck's constant (approximately 6.626 x 10⁻³⁴ joule-seconds).ν (nu) is the frequency of the radiation.It's also common to see it expressed in terms of wavelength:E = hc/λWhere:c is the speed of light.λ (lambda) is the wavelength of the radiation.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Atomic Structure
Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.
Practise Atomic Structure
922 free Atomic Structure MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Atomic Structure questions
The electronic configuration of an element is 1s2 , 2s2 , 2p6 , 3s2 , 3p6 , 3d5 , 4s1. This represents its:
The ratio of the radii of the first three Bohr orbits is:
The electronic configuration of Fe 3+ is :
A nodal plane in an orbital is the plane where electron density is:
Quantum number values for 3p orbital are:
Magnetic quantum number values for the d-subshell are: