are longitudinal
have same frequency
have the same wavelength
travel at the same speed in a vacuum
Correct answer is D
No explanation has been provided for this answer.
165.0 ms-1
330.0ms-1
41.5ms-1
85.0ms-1
Correct answer is B
v = f\(\lambda\)
= 825 x 0.4
= 330.0ms-1
155oC
160oC
169oC
179oC
Correct answer is D
\(\alpha = \frac{L_2 - L_1}{L_1(\theta_2 - \theta_1)}\)
L\(_2\) - L\(_1\) = \(\alpha L_1 (\theta_2 - \theta_1)\)
\(\theta_2 = \frac{0.007}{2.3 \times 10^{-5} \times 1.8}\) + 10
= 179°C
Radio waves belong to the class of wave whose velocity is about
34m/s
3 ×106m/s
3 ×108m/s
3 × 10-8m/s
Correct answer is C
A radio waves is an electromagnetic waves which travels with a constant velocity of 3 × 108m/s
Red, blue and green
Cyan, magenta and yellow
Black, blue and green
None of these colours
Correct answer is A
Primary colours of light are red, blue and green
Secondary colours of light are cyan, magenta and yellow
WAEC Subjects
Aptitude Tests