Question 4161:

• JAMB 2021

The motion of a body is simple harmonic if the?

A. Acceleration is always directed towards a fixed point
B. Path of motion is a straight line
C. Acceleration is proportional to the square of the distance from a fixed point
D. Acceleration is constant and directed towards a fixed point

Question 4162:

• WAEC 2019

A device consumes 100 W of power when connected to a 120 V source. Calculate its resistance.

A. 1.2\(\Omega\)
B. 12,000 \(\Omega\)
C. 20.0\(\Omega\)
D. 144\(\Omega\)

Question 4163:

• WAEC 2019

Which property of a wave remains constant when the wave travels from one medium into another?

A. Amplitude
B. Wavelength
C. Velocity
D. Frequency

Question 4164:

• WAEC 2019

The anomalous expansion of water occurs in the range

A. 0 °C to 100 °C
B. 0 °C to 4 °C
C. 4 °C to 100 C
D. -4 °C to 0 °C

Question 4165:

• WAEC 2019

A ray of light traveling from a rectangular glass block of refractive index 1.5 into air strikes the block at an angle of incidence of 30. Calculate its angle of refraction.

A. 48.6°
B. 19.5°
C. 20.0
D. 45.0