MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The period’s number corresponds to the highest _________ |
| A. | Azimuthal quantum number |
| B. | Spin quantum number |
| C. | Magnetic quantum number |
| D. | Principal quantum number |
| Answer» E. | |
| 2. |
The horizontal rows in Mendeleev’s periodic table were called as __________ |
| A. | periods |
| B. | groups |
| C. | series |
| D. | rows |
| Answer» D. rows | |
| 3. |
Henry Moseley’s law is given by the equation \(\sqrt{v}\) = a(Z – b). What do a and b represent here? |
| A. | The proportionality constant, screening constant |
| B. | Screening constant, proportionality constant |
| C. | Absorption constant, proportionality constant |
| D. | screening constant, Boltzmann constant |
| Answer» B. Screening constant, proportionality constant | |
| 4. |
What does Z represent in the above graph? |
| A. | Atomic mass |
| B. | Atomic number |
| C. | Frequency |
| D. | Wavelength |
| Answer» C. Frequency | |
| 5. |
The graph of \(\sqrt{v}\) Vs Z gives a straight line. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
____________ observed the X-rays’ characteristics. |
| A. | Henry Moseley |
| B. | Mendeleev |
| C. | Pauli |
| D. | Newland |
| Answer» B. Mendeleev | |