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.
lf the frequency of the a.c. circuit illustrated is 500Hz/ π what would be the reactance in the c...
The purpose of commutators in a direct current motor is to ...
According to kinetic molecular model, in gases ...
A body moves with a constant speed but has an acceleration. This is possible if it ...
Which of the following statements about pressure in a liquid is correct? ...
The temperature of a liquid falls after some of it has evaporated because ...
Steel bars each of length 3m at 28°C are to be used for constructing a rail line. If the linear ...
an electric cell with nominal voltage E has a resistance of 3Ω connected across it. If the vol...