JAMB Physics Past Questions & Answers - Page 314

1,566.

Which of the following is the exclusive property of a transverse wave?

diffraction

refraction

compression

polarization

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

1,567.

A well-lagged bar of length 100cm has its ends maintained at 100^oC and 40^oC respectively. What is the temperature at a point 60cm from the hotter end?

58^oC

62^oC

64^oC

76^oC

View answer & explanation

Correct answer is D

100^oC ....100cm

60^oC ....60cm

40^oC .... 0cm

\(\frac{\theta - 40}{100 - 40}\) = \(\frac{60 - 0}{100 - 0}\)

\(\theta\) = 76^oC

1,568.

Which of the following statements give the TRUE difference between evaporation and boiling?

i. Evaporation occurs at all temperatures while boiling occurs at a fixed temperature for a given pressure.
ii. Evaporation is a surface phenomenon while boiling is an interior phenomenon.
iii. Evaporation is affected by surface area while boiling is not.

i and ii only

i and iii only

ii and iii only

i, ii, iii.

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

1,569.

A quantity of ice at 10^oC is heated until the temperature of the heating vessel is 90^oC. Which of the following constants is NOT required to determine the quantity of heat supplied to the vessel?

specific heat capacity of ice

specific heat capacity of water

specific latent heat of fusion