Physics Past Questions and Answers

Which of the following pairs of concepts constitutes complementary variables as expressess by the Heinsberg uncertainty principle?

The nucleon number of an atom is the total number of

n = \(\alpha\)	0.06eV
E=3	-1.6eV
E=2	-3.7eV
E=1	-5.5eV
E=0	-10.4eV

The energy levels in the mercury atom is illustrated in the table above. Calculate the ionisation energy of the atom.

Which of the following statements about Gamma radiation is correct? Gamma radiation can

Radio wave

Micro wave

Infrared wave

P

Q

R

Gamma Ray

The table above shows the components of electromagnetic spectrum in order of increaasing frequency.Which of the following sets correctly identifies P, Q, R respectively?