MCQ
The ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to Bohr's model is
- ✓$1 :\, -1$
- B$1 : 1$
- C$1 : 2$
- D$2 : 1$
✓
Answer
Correct option: A.
$1 :\, -1$
a
Since the relation between, $K.E., P.E.,$ and $T.E.$ is given as
Since the relation between, $K.E., P.E.,$ and $T.E.$ is given as
$- T . E .= K. E .=- P . E. / 2$
Ratio $K.E : T.E :: 1:-1$
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
Assign $A, B, C, D$ from given type of reaction.
$CO + I_2O_5 (s) \longrightarrow CO_2 + I_2$
→For the following two acid-base reactions, which statement is True ?
→$(I){\mkern 1mu} C{H_3}CH_2^ - {\mkern 1mu} + {\mkern 1mu} \mathop {C{H_3}N{H_2}}\limits_{p{K_a} = 35} \rightleftharpoons \mathop {C{H_3}C{H_3}}\limits_{p{K_a} = 50} + C{H_3}N{H^ - }$
$(II){\mkern 1mu} {F^ - }{\mkern 1mu} + {\mkern 1mu} \mathop {{H_2}O}\limits_{p{K_a} = 15.7} \rightleftharpoons \mathop {HF}\limits_{p{K_a} = 3.2} + H{O^ - }$
Among the following mixture dipole-dipole attraction is present ?
Define homologous series.
Which of the following pair of elements have almost same size?
When ammonium nitrate is gently heated, an oxide of nitrogen is formed. What is the oxidation state of nitrogen in this oxide?
Conside the following reactions:
→$\mathrm{NaCl}+\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{Conc} .) \rightarrow(\mathrm{A})+$ Side products
$(\mathrm{A})+\mathrm{NaOH} \rightarrow(\mathrm{B})+$ side product
$(\mathrm{B})+\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{dilute})+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow(\mathrm{C})+$ Side product
The sum of the total number of atoms in one molecule each of $(A), (B)$ and $(C)$ is
$10\ gm\ NaHCO_3(s)$ sample is heated in open to constant weight, the residue is titrated gainst $0.1\,M \ HCl$ in presence of phenolphathalein as an indicator, $500\ ml$ of acid was required to reach end point hence $\%$ purity of sample is ............... $\%$
→On decreasing the $p \mathrm{H}$ from $7$ to $2$ , the solubility of a sparingly soluble salt ($MX$) of a weak acid ($HX$) increased from $10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}$ to $10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$. The $p \mathrm{~K}_{\mathrm{s}}$ of $\mathrm{HX}$ is:
→$\xrightarrow[\Delta ]{{alc.\,KOH}}$ product
→