The nucleon number and the proton number of a neutral ato...
The nucleon number and the proton number of a neutral atom of an element are 23 and 11 respectively. How many neutrons are present in the atom?
11
12
23
34
Correct answer is B
No explanation has been provided for this answer.
An a.c. generator can be converted into a d.c. generator by replacing ...
An object 0 lies at a distance m in front of concave mirror of focal length f. If m < f, then the...
A metal rod has a length of 100cm at 200°C. At what temperature will its length be 99.4cm. If th...