JAMB Physics Past Questions & Answers - Page 458

2,286.
2,287.

I. Coherence
II. Same frequency
III. Same wavelength
IV. Same Intensity

Which of the conditions above are necessary to produce interference fringes?

A.

I and III

B.

I, II and IV

C.

I, II and III

D.

II and III

Correct answer is C

No explanation has been provided for this answer.

2,288.

A quantity of water at 0°C is heated to about 30°C. At each degree rise in temperature, its density will

A.

rise steadily

B.

fall steadily

C.

fall then rise

D.

rise then fall

Correct answer is D

No explanation has been provided for this answer.

2,289.

Total internal reflection occurs when light moves from?

A.

a dense medium to a less dense medium

B.

air to water

C.

water to glass

D.

a less dense to a dense medium

Correct answer is A

No explanation has been provided for this answer.