Jamb Physics 1994 Past Questions and Answers

Question 31:

• JAMB 1994

If the Nigeria flag (green, white, green) is viewed in pure yellow light, which of the following set of colours would be observed on the flag?

A. Green, yellow, green
B. Red, yellow, red
C. Black, yellow, black
D. Green, white, green

Question 32:

• JAMB 1994

Which of the following has the lowest internal resistance when new?

A. Leclanche cell
B. Daniel cell
C. Accumulator
D. Torch battery

Question 33:

• JAMB 1994

When a biro pen rubbed on a dry silk cloth is moved very close to a piece of paper on a dry table, the pen is found to pick up the paper. This is because

A. Both the pen and the cloth are magnetized
B. The pen is magnetized but the cloth is not
C. The pen is charged while the cloth is magnetized
D. Both the pen and the cloth are charged

Question 34:

• JAMB 1994

A capacitor 8\(\mu\)F is charged to a potential difference of 100V. The energy stored by the capacitor is

A. 1.0 x 10⁴J
B. 8.0 x 10J
C. 1.25 x 10J
D. 4.0 x 10^-2J

Question 35:

• JAMB 1994

Two capacitors R₁ = 4\(\Omega\) and R₂ = 5\(\Omega\) are connected in parallel across a potential difference. If P₁ and P₂ represent power dissipated in R ₁ and R₂ respectively, then the ratio P₁ : P₂ is

A. 4 : 5
B. 5 : 4
C. 16 : 25
D. 25 : 16