Physics 2015 Jamb Past Questions and Answers

Question 61 :

• JAMB 2015

The eyeball consists of a round tough white skin called

A. Sclerotic
B. Choroid coal
C. Optical fiber
D. Accommodation

Question 62 :

• JAMB 2015

Which one of the following is a vector quantity?

A. Temperature gradient
B. Mass
C. Work
D. Time

Question 63 :

• JAMB 2015

Efficiency of a transformer is equal to

A. Efficiency of transformer = (secondary coil à· primary coil) à— 100%
B. Efficiency of transformer = (mechanical advantage ÷ velocity ratio) × 100%
C. Efficiency of a transformer = (Number of turns in the secondary coil à· Number of turns in the primary coil) à— 100%
D. Efficiency of a transformer = (power developed in the secondary coil à· power supplied to the primary coil) à— 100%

Question 64 :

• JAMB 2015

Volatile liquids usually

A. Have high boiling points
B. Have low boiling points
C. Have high densities
D. Have high melting points

Question 65 :

• JAMB 2015

When a man moves toward a plane mirror at a speed of 6m/s, the distance the man and his image increased at a speed of?

A. 2 m/s
B. 4 m/s
C. 12 m/s
D. 14 m/s