Jamb Physics 2001 Past Questions and Answers

Question 41:

• JAMB 2001

If ray travelling in air is incident on a transparent medium as shown in the diagram, the refractive index of the medium is given as

A. Cosα / sinβ
B. Sinα / sinβ
C. Cosβ / sinα
D. Sinβ / sinα

Question 42:

• JAMB 2001

In the diagram above , the current I is

A. ³/₈
B. ⁹/₁₁
C. ¹¹/₉
D. ⁸/₃

Question 43:

• JAMB 2001

The diagram above shows two capacitors P and Q of capacitance 2μF and 4μF respectively connected to a d.c source. The ratio of energy stored in P to Q is

A. 4:1
B. 2:1
C. 1:4
D. 1:2

Question 44:

• JAMB 2001

The diagram above shows the capacitors C₁, C₂ and C₃ 2μF, 6μF and 3μF respectively. The potential difference across C₁, C₂ and C₃ respectively are

A. 4V, 6V and 2V
B. 2V, 6V and 4V
C. 6V, 4V and 2V
D. 6V, 2V and 4V

Question 45:

• JAMB 2001

The diagram above shows a closed side 0.5m in a uniform electric field E in the direction shown by the arrows. What is the flux Φ for the box?

A. 0.5 E
B. 2.0 E
C. 0.2 E
D. 0.0 E