Jamb Physics 2004 Past Questions and Answers

Question 6:

• JAMB 2004

X rays can be used in the study of crystal structure because they

A. Have a very long-reaching wavelength
B. Have extremely short wavelength
C. Are invisible
D. Are very fast

Question 7:

• JAMB 2004

A moving coil galvanometer has a full-scale deflection of 3A equivalent to 30^o deflection. The sensitivity of the instrument is

A. 33.0
B. 0.1
C. 90.0
D. 10.0

Question 8:

• JAMB 2004

The particle and wave nature of matter are demonstrated in the equation

A. λ = ^hc/_E
B. λ = ^h/_P
C. λ = ^c/_f
D. λ = 2 d sin θ

Question 9:

• JAMB 2004

In a reverse biased junction diode, current flows in by

A. Positive holes alone
B. Majority carriers
C. Electron alone
D. Minority carriers

Question 10:

• JAMB 2004

In a tuned radio receiver R, L, C series circuit for resonance, the inductive and capacitive reactance X_L and X_C respectively are related as

A. X_L = X_C
B. X_L = ¹/₂X_C
C. X_L = ¹/_X[sub]C[/sub]
D. X_L = 2X_C