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.
Hot water at a temperature of t is added to twice that amount of water at a temperature of 30°C....
Which of the following is correct about an electric cell? ...
A bar magnet is most effectively demagnetized by ...
Which of the following is not true of an electrical charge? ...
Which of the current-voltage characteristics shown below is that exhibited an ohmic conductor? ...