Question
Charge on an $\alpha - \text{particle}$ is:
✓
Answer
$3.2 \times 10^{–19} C$
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
Current in the circuit is wattless, if.
A horizontal loop abcd is moved across the pole pieces of a magnet as shown in fig. with a constant speed $v.$ When the edge ab of the loop enters the pole pieces at time $t = 0 \sec.$ Which one of the following graphs represents correctly the induced emf in the coil
→How many spectral lines are there in the hydrogen spectrum?
The capacity of a parallel plate condenser is $C.$ Its capacity when the separation between the plates is halved will be
→A proton exerts a force on a proton which is:
- Gravitational.
- Electromagnetic.
- Nuclear.
- Weak.
When an inert gas is filled in the place vacuum in a photo cell, then(a) Photo-electric current is decreased(b) Photo-electric current is increased(c) Photo-electric current remains the same(d) Decrease or increase in photo-electric current does not depend upon the gas filled
Which of the following are not electromagnetic waves(a) Cosmic rays(b) Gamma rays(c) b-rays (d) X-rays
Two conductors made of the same material are connected across a common potential difference. Conductor $A$ has twice the diameter and twice the length of conductor $B .$ The power delivered to the two conductors $\mathrm{P}_{\mathrm{A}}$ and $\mathrm{P}_{\mathrm{B}}$ respectively is such that $\mathrm{P}_{\mathrm{A}} / \mathrm{P}_{\mathrm{B}}$ equals to
→Out of dia, para and ferromagnetism, the universal property of all substances is:
A man standing in a swimming pool looks at a stone lying at the bottom. The depth of the swimming pool is h. At what distance from the surface of water is the image of the stone formed (Line of vision is normal; Refractive index of water is n)(a) h/n(b) n/h (c) h (d) hn