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WAEC Physics

Page 13

Which of the following radiations has the longest wavelength

a.

Gamma ray

b.

Radio wave

c.

Infrared ray

d.

X-ray

A resistor with fixed resistance value is called a

a.

resistance box

b.

standard resistor

c.

shunt

d.

multiplier

A mercury-in-glass thermometer reads 4cm at ice point and 29cm at steam point . Calculate the temperature when the mercury level is at 9cm.

a.

13°C

b.

20°C

c.

33°C

d.

38°C

In an elastic collision, momentum is conserved as well as

a.

velocity

b.

kinetic energy

c.

potential energy

d.

speed

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