UNIZIK Physics 2012/2013 Day 2 Past Questions

Practice each question, then open it to see the full details.

A temperature of 20°C is the same as

A.36°F
B.68°F
C.11.1°F
D.43.1'F
E.25°F

A guitar string is 75cm long. The wavelength of the fundamental note is

A.75 cm
B.150 cm
C.37.5 cm
D.112.5 cm
E.50 cm.

A man standing between two parallel mirrors in a barber's shop will see the follo of his own image

A.Eight
B.Two
C.Four
D.One
E.Infinite.

in an electrolysis experiment, a cathode of mass 5g is found to weigh 5.01g after a current of 5A flows for 50 secondsremains. What is the electrochemical equivalent of the deposited substance?

A.0.00004g/C
B.0.00002g/C
C.0.02500g/C
D.0.05000g/C
E.0.00001g/C

Which of the following electromagnetic waves has the shortest wavelengths?

A.Radio waves
B.X-rays
C. Infra-red
D.Blue light
E.Ultraviolet