MCQ
Henry Moseley studied characteristic X-ray spectra of elements. The graph which represents his observation correctly is: (Given $v =$ frequency of $X$-ray emitted; $Z =$ atomic number)
- A
- ✓
- C
- D
✓
Answer
Correct option: B.
b
$\sqrt{v} \alpha Z$
$\sqrt{v} \alpha Z$
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
Which type of bond is formed between similar atoms
An isotone of $_{32}G{e^{76}}$ is
→$(i){\,_{32}}G{e^{77}}$ $(ii)\,{\,_{33}}A{s^{77}}$
$(iii)\,{\,_{34}}S{e^{77}}$ $(iv)\,{\,_{34}}S{e^{78}}$
The natural petroleum contains
Most stable carbocation among the following is
For a sample of perfect gas when its pressure is changed isothermally from $p_i$ to $p_f$, the entropy change is given by
→Baeyer's reagent is used in the laboratory for
What will be the $pH$ of a solution formed by mixing $40\, cm^3$ of $0.1\, M \,HCl$ with $10\, cm^3$ of $0.45\, M \,NaOH$
→Choose the chain terminating step
→(1)${H_2} \to {H^ \bullet } + {H^ \bullet }$
(2)$B{r_2} \to B{r^ \bullet } + B{r^ \bullet }$
(3)$B{r^ \bullet } + HBr \to {H^ \bullet } + B{r_2}$
(4)${H^ \bullet } + B{r_2} \to HBr + B{r^ \bullet }$
(5)$B{r^ \bullet } + B{r^ \bullet } \to B{r_2}$
Which of the following is least soluble
Conjugate base of $HPO_4^{2 - }$ is
→