In the diagram, PR is a diameter of the circle centre O. RS is a tangent at R and QPR = 58^o. Find ∠QRS

• A. 112^o
• B. 116^o
• C. 122^o
• D. 148^o

Absorption line spectra exhibited by atoms is a result of

• A. change in the kinetic energy of a movimg atom
• B. instability of the nucleons
• C. excitation of an electron in the atom
• D. transition of an electron from a higher to a lower energy level

The threshold of frequency for photoelectric effect depends on the

• A. intensity of incident light
• B. frquency of incident light
• C. material of the photocathode
• D. potential difference between the cathode and the anode

These question is based on General Literary Principles.

The figure of speech in which the writer means the exact opposite of what he intends to say is

• A. paradox
• B. metaphor
• C. satire
• D. irony

Which of the following climates is characterised by an alternate hot, wet season and cool dry season?

• A. Equatorial
• B. Mediterranean
• C. Tropical desert
• D. Tropical continental

The development of trade in West Africa was aided by the

• A. emergence of traditional rulers
• B. arrival of the Portuguese
• C. Introduction of tax payment
• D. introduction of money

In what year was ECOWAS established?

• A. 1975
• B. 1976
• C. 1960
• D. 1963

Given that \(P = \begin{pmatrix} 4 & 9 \end{pmatrix}\) and \(Q = \begin{pmatrix} -1 & -2 \\ 3 & 2 \end{pmatrix}\). Evaluate \(|Q|P\).

• A. \(\begin{pmatrix} 16 & 36 \end{pmatrix}\)
• B. \(\begin{pmatrix} 8 & 18 \end{pmatrix}\)
• C. \(\begin{pmatrix} 8 & 0 \end{pmatrix}\)
• D. \(\begin{pmatrix} 1 & 2 \end{pmatrix}\)

If the time at the Greenwich Meridian is 11.00am, what would the local time be at a place 75°W?

• A. 6.00 p.m
• B. 5.00 p.m
• C. 6.00 a.m
• D. 5.00 a.m

A question which does not require an answer is

• A. discourse
• B. rhetorical
• C. ironic `
• D. flashback