MCQ
Bohr's atom model assumes
- AThe nucleus is of infinite mass and is at rest
- BElectrons in a quantized orbit will not radiate energy
- CMass of electron remains constant
- ✓All the above conditions
✓
Answer
Correct option: D.
All the above conditions
d
(d) In $1913,$ Niels Bohr proposed a model for the hydrogen atom. The Bohr model was based on the following assumptions.
(d) In $1913,$ Niels Bohr proposed a model for the hydrogen atom. The Bohr model was based on the following assumptions.
The electron in a hydrogen atom travels around the nucleus in a circular orbit. The nucleus is of infinite mass and is rest.
Electrons in a quantized orbit will not radiate energy. Mass of electron remains constant.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A $100\, mH$ coil carries a current of $1\, ampere$. Energy stored in its magnetic field is......$J$
→The output $y$, when all three inputs are first high and then low, will respectively be
→A photodetector is made from a semiconductor In$ 0.53$ $Ga$ $0.47$ As with $E_g = 0.73 \,eV$. What is the maximum wavelength, which it can detect.........$nm$
→In the hydrogen spectrum, the ratio of the wavelengths for Lyman-alpha radiation to Balmer-alpha radiation is
A capillary tube is dipped in water and it is $20 \,cm$ outside water. The water rises upto $8 \,cm$. If the entire arrangement is put in freely falling elevator the length of water column in the capillary tube will be ........ $cm$
→An ideal gas heat engine operates in a Carnot cycle between $227^o C$ and $127^o C$. It absorbs $6\,kcal$ at the higher temperature. The amount of heat (in $kcal$) converted into work is equal to
→To raise the temperature of a certain mass of gas by $50^{\circ} C$ at a constant pressure, $160$ calories of heat is required. When the same mass of gas is cooled by $100^{\circ} C$ at constant volume, $240$ calories of heat is released. How many degrees of freedom does each molecule of this gas have (assume gas to be ideal) $?$
→A particle of mass $0.1 \,kg$ is subjected to a force which varies with distance as shown. If it starts its journey from rest at $x=0$, then its velocity at $x=12 \,m$ is .............. $m / s$
→A uniform magnetic field exists in the region given by $\vec{B}=3 \hat{i}+4 \hat{j}+5 \hat{k}$. A rod of length $5 \,m$ placed along $y-$ axis is moved along $x$-axis with constant speed $1 \,ms ^{-1}$. Then induced e.m.f. in the rod is ......... $V$
→If a Carnot’s engine functions at source temperature $127^o C$ and at sink temperature $87^o C$, what is its efficiency ....... $\%$
→