NECO Physics Past Questions & Answers - Page 12

56.
57.

Which of the following phenomena is responsible for the spherical shape of soap bubbles?

A.

Adhesion

B.

Capillarity

C.

Cohesion

D.

Osmosis

E.

Surface tension

Correct answer is E

No explanation has been provided for this answer.

58.

Which of the following pairs of phenomena helps in the resolution of the wave-particle paradox of matter?

A.

Compton effect and thermionic emission

B.

Electron diffraction and refraction

C.

emission and absorption of light

D.

Interference and polarization

E.

Reflection and photoelectric effect

Correct answer is C

No explanation has been provided for this answer.

59.

The defect of the eye lens which occurs as a result of weak ciliary muscles is called

A.

astigmatism

B.

hypermetropia

C.

myopia

D.

presbyopia

E.

spherical aberration

Correct answer is D

No explanation has been provided for this answer.

60.

Two forces of magnitude 8N and 4N act at right angle to each other. The angle between the resultant and the 8N force is

A.

23.9°

B.

26.6°

C.

29.5°

D.

60.0°

E.

63.4°

Correct answer is B

No explanation has been provided for this answer.