Neco Physics 2001 Past Questions and Answers

Question 21:

• NECO 2001

An object placed 15cm from a converging lens forms a real image whose magnification is 2.0. What is the focal length of the lens?

A. 5.00cm
B. 10.00cm
C. 15.00 cm
D. 18.00 cm
E. 20.00cm

Question 22:

• NECO 2001

Which statement about the concept of temperature is NOT true?

A. Temperature decides the direction of heat flow between two bodies
B. Temperature is a measure of coldness of a body
C. Temperature is a vector quantity
D. Temperature is a measure of hotness of a body.
E. Temperature scales include Fahrenheit, Celsius and Kelvin

Question 23:

• NECO 2001

Which is a stringed Instrument?

A. Drum
B. Flute
C. Piano
D. Saxophone
E. Trumpet

Question 24:

• NECO 2001

The statement that the mechanical advantage of a machine is 3 means that the ____________

A. Efficiency is 33\(\frac{1}{3}\)%
B. Effort is three times as large as the load
C. Mechanical advantage is 3 times as large as the velocity ratio
D. Ratio of the effort to the load is 1: 3
E. Velocity ratio is 3

Question 25:

• NECO 2001

The wavelength of a stationary wave is 24.0cm. What is the distance between a node and the next antinodes?

A. 6.0cm
B. 12.0cm
C. 18.0cm
D. 24.0cm
E. 48.0cm