NECO Past Questions and Answers - Page 173

861.

A dynamo primarily converts

A.

Mechanical energy into electrical energy

B.

Electrical energy into kinetic energy

C.

Potential energy into kinetic energy

D.

Kinetic energy into potential energy

Correct answer is A

No explanation has been provided for this answer.

862.

Which of the following statements is NOT correct?

A.

Brownian motion is an evidence of the particle nature of matter

B.

Atoms combine to form molecules

C.

The molecules of matter are not in constant motion

D.

matter is made up of molecules

Correct answer is C

No explanation has been provided for this answer.

863.

Branding and packaging of goods is the function of

A.

Brokers

B.

Consumers

C.

Manufacturers

D.

Retailers

E.

Wholesalers

Correct answer is C

No explanation has been provided for this answer.

864.

Semiconductor is a class of solid whose conductivity increases with an increase in

A.

Pressure

B.

Temperature

C.

Current

D.

Voltage

Correct answer is B

No explanation has been provided for this answer.

865.

A boy in a barber's shop sits between two parallel mirrors. The number of images observed by him will be

A.

Infinite

B.

Ten

C.

Eight

D.

Forty

Correct answer is A

No explanation has been provided for this answer.