Diffraction is the spreading of a wave from a gap.
The statements that are true about diffraction in the case above are;
<span>1. Both A and B will encounter waves. and
</span><span>6. Waves will reach A and B at the same time.</span>
The correct choice would be
(B) The magnets would be attracted to each other.
we know that like poles repel each other and unlike poles attract each other. hence when south pole of one magnet is placed near the north pole of other magnet, the two magnets attract each other due to interaction of magnetic fields of the two magnets. the magnetic field lines originating from north pole of one magnet ends at the south of other magnet
Answer:B,C,D
Explanation:
Thermodynamic efficiency is given by
efficiency can be increased by Keeping 
constant and increasing 
Keeping constant and decreasing 
by increasing 
by decreasing 
ratio
