- ABy an electric field.
- BBy a magnetic field.
- CBy an electric field as well aa by a magnetic field.
- DNeither by an electric field nor by a magnetic field.
Explanation:
Since X-rays do not have any charged particles, they are not deflected by an electric field or a magnetic field.
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In an atomic bomb, the energy is released due to
|
(a) Chain reaction of neutrons and |
|
(b) Chain reaction of neutrons and |
|
(c) Chain reaction of neutrons and |
|
(d) Chain reaction of neutrons and |
We combined a convex lens of focal length f1 and concave lens of focal lengths f2 and their combined focal length was F. The combination of these lenses will behave like a concave lens, if
|
(a) f1 > f2 |
(b) f1 < f2 |
(c) f1 = f2 |
(d) f1 ≤ f2 |
The plate resistance of a triode is 2.5 × 104 W and mutual conductance is 2 × 10–3 mho. What will be the value of amplification factor
|
(a) 50 |
(b) 1.25 × 107 |
(c) 75 |
(d) 2.25 × 107 |
If in a nuclear fusion process the masses of the fusing nuclei be
and
and the mass of the resultant nucleus be
, then
|
(a) |
(b) |
(c) |
(d) |
4 eV is the energy of the incident photon and the work function in 2eV. What is the stopping potential
|
(a) 2V |
(b) 4V |
(c) 6V |
(d) 2 |