MCQ
Charge on $\alpha $ - particle is
- A$4.8 \times {10^{ - 19}}\,C$
- B$1.6 \times {10^{ - 19}}\,C$
- ✓$3.2 \times {10^{ - 19}}\,C$
- D$6.4 \times {10^{ - 19}}\,C$
✓
Answer
Correct option: C.
$3.2 \times {10^{ - 19}}\,C$
c
(c) By using $Q = ne\, \Rightarrow Q = + 2e = + 3.2 \times {10^{ - 19}}\,C$
(c) By using $Q = ne\, \Rightarrow Q = + 2e = + 3.2 \times {10^{ - 19}}\,C$
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 body of mass $1000 \ kg$ is moving horizontally with a velocity $6\ m / s$. If $200 \ kg$ extra mass is added, the final velocity $($ in $m / s )$ is:
→Three identical resistances $A$, $B$ and $C$ are connected as shown in the given figure. The heat produced will be maximum
→As the switch $S$ is closed in the circuit shown in figure, current passed through it is .................. $A$
→If resistance of the filament increases with temperature, what will be power dissipated in a $220\, V- 100\, W$ lamp when connected to $110\, V$ power supply
→A very thin metallic shell of radius $r$ is heated to temperature $T$ and then allowed to cool. The rate of cooling of shell is proportional to ........
→What will be the nature of flow of water from a circular tap, when its flow rate increased from $0.18\, L / min$ to $0.48\, L / min$ ? The radius of the tap and viscosity of water are $0.5\, cm$ and $10^{-3}\, Pa s$, respectively.
→(Density of water : $10^{3}\, kg / m ^{3}$ )
A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is $v$ in the direction shown, which one of the following options is correct ( $P$ and $Q$ are any highest and lowest points on the wheel, respectively)?
→A monochromatic beam of light enters a square enclosure with mirrored interior surfaces at an angle of incidence $\theta_i(\neq 0)$ (see figure). For some value(s) of $\theta_i$, the beam is reflected by every mirrored wall (other than the one with the opening) exactly once and exits the enclosure through the same hole. Which of the following statements about this beam is correct?
→The temperature at which the average translational kinetic energy of a molecule is equal to the energy gained by an electron in accelerating from rest through a potential difference of $1\, volt$ is
→Find the equivalent resistance between two ends of the following circuit.
