MCQ
The SI unit of volume charge density is:
- AC/m.
- BC/m2.
- CC/m3.
- DCm.
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In photoelectric effect, the K.E. of electrons emitted from the metal surface depends upon
|
(a) Intensity of light |
(b) Frequency of incident light |
|
(c) Velocity of incident light |
(d) Both intensity and velocity of light |
The length of a given cylindrical wire is increased by 100 %. Due to the consequent decrease in diameter the change in the resistance of the wire will be
|
(a) 300 % |
(b) 200 % |
(c) 100 % |
(d) 50 % |
$\overrightarrow{\text{F}}\times\overrightarrow{\text{a}}$
$\overrightarrow{\text{v}}\times\overrightarrow{\text{r}}$
$\overrightarrow{\text{a}}\times\overrightarrow{\text{r}}$
$\overrightarrow{\text{F}}\times\overrightarrow{\text{r}}$
The magnetic moment of atomic neon is
| (a) Zero | (b) μB/2 | (c) μB | (d) 3μB/2 |