Question 4566:

• NECO 2005

Notes of the same frequency sounded on a guitar and trumpet may differ in

I. loudness
II. Pitch
III. quality Which of the statements above is correct?

A. I only
B. II only
C. III only
D. I and II only
E. I, II and III

Question 4567:

• NECO 2005

The amplitude of oscillation of a simple pendulum bob diminishes slowly because ____________

A. Energy is applied by some external agencies
B. Frictional forces dissipate the energy of motion
C. The frequency of oscillation increases with the mass of the bob
D. The frequency of oscillation varies with time
E. The period of oscillation varies with time.

Question 4568:

• NECO 2005

The wave theory of light does not explain photoelectricity because ____________

A. Light waves carry little energy
B. Particles cannot be emitted by waves
C. The frequency of light waves too high
D. There is a threshold wavelength for electron emission
E. The wavelength of Light waves is too short.

Question 4569:

• NECO 2005

The most suitable instrument for measuring the diameter of a thin wire is a ____________

A. Meter rule
B. Micrometer screw gauge
C. Pair of dividers
D. Pair of engineer’s calipers
E. Venire calipers

Question 4570:

• NECO 2005

The angle between the geographic and the magnetic meridians at a place on the earth’s surface is the ____________

A. Angle of declination
B. Angle of depression
C. Angle of dip.
D. Latitude of the place
E. Longitude of the place