Which of the following properties of waves is exclusive to transverse waves?
reflection
interference
diffraction
polarization
Correct answer is D
No explanation has been provided for this answer.
When two waves are superimposed on each other, the following occurrences are possible, except
nodal lines
anti nodal lines
stationary waves
dispersion
Correct answer is D
No explanation has been provided for this answer.
Which of the following factors decreases the rate of evaporation of a liquid?
increase in pressure over the liquid
lowering the boiling point
decreasing in humidity
wind
Correct answer is A
No explanation has been provided for this answer.
0.37g
0.60g
2.40g
2.70g
Correct answer is D
Mice = \(\frac{MC}{\theta}\)
= \(\frac{20 \times 0.4 \times 110}{330}
Heat lost by copper = Heat gained by ice
m\(_{copper}\) c \(\theta\) = m\(_{ice}\) L
20 x 0.4 x (110 - 0) = m\(_{ice}\) x 330
m\(_{ice}\) = \(\frac{20 \times 0.4 \times 110}{330}\)
= \(\frac{8}{3}\)
= 2.67 g
= 2.70g (to 1 d.p)
In the formation of sea breeze. wind blows from
sky to land
sea to sky
land to sea
sea to land
Correct answer is D
A sea breeze describes a wind that blows from the ocean (sea) inland towards land.