Options:
(1)
(2)
(3)
(4)
Answer: (4)
Solutions:
Q-12: A sample which has half-life of year. If initial number of nuclei of the sample is. Then find out the number of nuclei decayed in 1 year.
Options:
(1)
(2)
(3)
(4)
Answer: (3)
Solutions:
Q-13: If a small orifice is made at a height of from the ground, the horizontal range of water stream will be
Image Small Orifice,Horizontal Range of Water Stream
Options:
(1)
(2)
(3)
(4)
Answer: (4)
Solutions:
Horizontal range
Q-14: A capacitor is connected to a battery of voltage V. Now a di-electric slab of di-electric constant k is completely inserted between the plates, then the final charge on the capacitor will be: (If initial charge is)
(1)
(2)
(3)
(4) Zero
Answer: (2)
Solutions:
Q-15: Unit of magnetic flux is:
Options:
(1) Tesla
(2) Gauss
(3) Weber
(4)
Answer: (3)