If a radioactive atom emits a beta particle, Its mass num...
If a radioactive atom emits a beta particle, Its mass number
increases by one
remains the same
decreases by one
increases by two
Correct answer is B
No explanation has been provided for this answer.
If a room is saturated with water vapour, the temperature of the room must be ...
The best material for the core of the primary and secondary coils of an induction coil is ...
The blade of a hoe feel colder to touch in the morning than the wooden handle because the ...
Which part of the human eye performs the same function as the diaphragm in a lens camera? ...
According to Ohm's law, the ratio V/I is constant for ...
Which of the following statements is true of the diagram shown above? ...
The magnification of an object 2cm tall when placed 10cm in front of a plane mirror is ...