Explanation:
The binding energy of the product nucleus will be greater than that of the reacting nuclei, because when two light nuclei fuse to form relatively heavier nucleus, energy is released. And the higher the binding energy, the more stable the nucleus is.
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A double convex lens of focal length 20 cm is made of glass of refractive index 3 / 2. When placed completely in water (a
, its focal length will be
|
(a) 80 cm |
(b) 15 cm |
(c) 17.7 cm |
(d) 22.5 cm |
Three semi-conductors are arranged in the increasing order of their energy gap as follows. The correct arrangement is
|
(a) Tellurium, germanium, silicon |
(b) Tellurium, silicon, germanium |
|
(c) Silicon, germanium, tellurium |
(d) Silicon, tellurium, germanium |
The capacity of a parallel plate condenser is 15μF, when the distance between its plates is 6 cm. If the distance between the plates is reduced to 2 cm, then the capacity of this parallel plate condenser will be
|
(a) 15 μF |
(b) 30 μF |
(c) 45 μF |
(d) 60 μF |
Which one of the following have minimum wavelength
|
(a) Ultraviolet rays |
(b) Cosmic rays |
(c) X-rays |
(d) γ - rays |
In Thomson spectrograph experiment, four positive ions P,Q,R and S are situated on Y-X curve a shown in the figure
|
(a) The specific charge of R and S are same |
|
(b) The masses of P and S are same |
|
(c) The specific charges of Q and R are same |
|
(d) The velocities of R and S are same |