Neco Physics Past Questions and Answers

Question 266:

• NECO 2005

Mercury does NOT wet glass because ____________

A. Glass is an amorphous substance
B. The adhesive force is greater than the cohesive force
C. The cohesive force is greater than the adhesive force.
D. Mercury has very high thermal conductivity
E. Mercury is opaque.

Question 267:

• NECO 2005

When some ice cubes are added to a glass of warm water, the glass is cooled by a process of ____________

A. Conduction only
B. Convection only
C. Conduction and convection
D. Conduction and radiation
E. Radiation only

Question 268:

• NECO 2005

The length of a simple pendulum is increased by a factor of four. By what factor is its period Increased?

A. 0.25
B. 0.5
C. 1.66
D. 2
E. 4

Question 269:

• NECO 2005

Which of the following pairs is an example of translucent bodies?

A. Cardboard and moon
B. Clear water and glass
C. Frosted glass and waxed paper
D. Oiled paper and brick
E. Wood and metal sheet

Question 270:

• NECO 2005

Calculate the peak voltage that could be obtained from a 220 V\(_{r.m.s}\)main supply.

A. 70.7V
B. 110.0V
C. 155.6V
D. 311.1V
E. 440.0V