MCQ
In beta decay, the typical Q value is approximately:
- A2 MeV
- B1 MeV
- C1 eV
- D10 MeV
✓
Answer
- 1 MeV
Explanation:
The Q value for a reaction is the amount of energy released by that reaction.
In beta decay, a typical Q is around 1 MeV.
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 rod of length l rotates with a small but uniform angular velocity $\omega$ about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the centre of the rod and an end is:
→-
$\text{zero}$
-
$\frac{1}{8}\omega\text{Bl}^2$
-
$\frac{1}{2}\omega\text{Bl}^2$
-
$\text{B}\omega\text{l}^2$
In the nuclear reaction 
is
|
(a) |
(b) |
(c) |
(d) |
In a crystal, the atoms are located at the position of
|
(a) Maximum potential energy |
(b) Minimum potential energy |
|
(c) Zero potential energy |
(d) Infinite potential energy |
The field due to a magnet at a distance R from the centre of the magnet is proportional to
|
(a) |
(b) |
(c) |
(d) |
The magnetic induction at the centre O in the figure shown is
|
(a) |
(b) |
(c) |
(d) |
An $\alpha$-particle is bombarded on 14N. As a result, a 17O nucleus is formed and a particle is emitted. This particle is a:
→The figure shows a process on a gas in which pressure and volume both change. The molar heat capacity for this process is C.
- C = 0
- C = Cv
- C > Cv
- C < Cv
What is the current (i) in the circuit as shown in figure
|
(a) 2 A |
(b) 1.2 A |
(c) 1 A |
(d) 0.5 A |
Which of the following is not true for electromagnetic waves?
Two circuits have coefficient of mutual induction of 0.09 henry. Average e.m.f. induced in the secondary by a change of current from 0 to 20 ampere in 0.006 second in the primary will be
|
(a) 120 V |
(b) 80 V |
(c) 200 V |
(d) 300 V |