Jamb Physics 2018 Past Questions and Answers

Question 86:

• JAMB 2018

A lens of focal length 15cm forms on erect image which is three times the size of the object. The distance between the object and the image is ___.

A. 10cm
B. 20cm
C. 30cm
D. 40cm

Question 87:

• JAMB 2018

The photo cell works on the principle of the

A. Voltaic cell
B. Emission of electron by incident radiation
C. Emission of protons by incident radiation
D. Photographic plate

Question 88:

• JAMB 2018

When a known standard resistor of 2.0 is connected to the 0.0cm end of a metre bridge, the balance point is found to be at 55.0cm

A. 1.10Ω
B. 1.64Ω
C. 2.44Ω
D. 27.50Ω

Question 89:

• JAMB 2018

A resistor connected to a 12V battery draws a current of 2A. The energy dispatched in the resistor in 5 minutes is ___.

A. 3,600J
B. 6,000J
C. 7,200J
D. 14,400J

Question 90:

• JAMB 2018

A solid weighs 45N and 15N respectively in air and water. Determine the relative density of the solid

A. 0.33
B. 0.50
C. 1.50
D. 3.00