Liquids - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 2003

In the calibration of an ammeter using faraday's laws of electrolysis, the ammeter reading is kept constant at 1.2A. If 0.990g of copper is deposited in 40 minutes , the correction to be applied to the ammeter is

A. 0.03A
B. 0.04A
C. 0.05A
D. 0.06A

Question 3:

• JAMB 2006

During electrolysis, 2.0 g of a metal is deposited using a current of 0.5 A in 3 hours. The mass of the same metal which can be deposited using a current of 1.5 A in 1 hour is?

A. 1.0 g
B. 0.5 g
C. 3.0 g
D. 2.0 g

Question 4:

• JAMB 2006

The battery connection that permits current to flow across a p-n junction is called?

A. Reverse baised
B. Forward baised
C. Amplification.
D. Rectification

Question 5:

• JAMB 2007

118.8cm² surface of the copper cathode of a voltameter is to be coated with 10^-6m thick copper of density 9 x 10³kgm^-3. How long will the process run with 10A constant current?
[3.3 x 10^-7kgC^-1]

A. 5.4 min
B. 10.8 min
C. 15.0 min
D. 20.0 min