Models Of The Atom And Their Limitations - Physics Jamb Past Questions and Answers

Question 1 :

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2 :

• JAMB 1981

The mass of a proton is approximately equal to that of

A. An \(\alpha\)-particle
B. A \(\beta\)-particle
C. \(\gamma\)-ray
D. An electron
E. A neutron

Question 3 :

• JAMB 1983

Which of the following statements is CORRECT? i. the mass number is equal to the total number of protons and electrons in an atom. ii. the atomic number is equal to the number of protons in an atom. iii. the number of electrons in an atom is equal to the total number of protons and neutrons in the nucleus.

A. I only
B. Ii only
C. Iii only
D. I and ii only
E. Ii and iii only