- AFusion
- BFission
- CEndothermic reaction
- DSpontaneous reaction
Explanation:
Fusion is the process that powers the sun and the stars. It is the reaction in which two atoms of hydrogen combine together or fuse to form an atom of helium. In this process some of the mass of the hydrogen converted into energy.
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Two coils A and B having turns 300 and 600 respectively are placed near each other, on passing a current of 3.0 ampere in A, the flux linked with A is 1.2
and with B it is 9.0
. The mutual inductance of the system is
|
(a) 2 × 10–5 henry |
(b) 3 × 10–5 henry |
(c) 4 × 10–5 henry |
(d) 6 × 10–5 henry |
The unit of inductance is
|
(a) Volt/ampere |
(b) Joule/ampere |
(c) Volt-sec/ampere |
(d) Volt-ampere/sec |
A bright star is indicated to have a brightness magnitude of – 5 compared to a star of brightness zero magnitude. It means that this star compared to the reference star of zero brightness is
|
(a) 100 times less bright |
(b) 5 times more bright |
|
(c) 5 times less bright |
(d) 100 times more bright |
Continuous spectrum is not due to
|
(a) Hydrogen flame |
(b) Electric bulb |
|
(c) Kerosene oil lamp flame |
(d) Candle flame |