Longitudinal waves do not exhibit
Refraction
Reflection
Diffraction
Polarization
Rarefaction
Correct answer is D
No explanation has been provided for this answer.
The specific latent heat of vaporization of a substance is always?
less than its specific latent heat of fusion
greater than its specific heat of fusion
equal to its specific latent heat of fusion
all of the above depending on the nature of the substance
none of the above
Correct answer is B
No explanation has been provided for this answer.
0.8
0.8N/C
20.0N/C
4.2N/C
Correct answer is C
Field intensity = \(\frac{force}{charge}\)
\(\frac{4}{0.2}\) = 20N/C
0.44 x 10 8ms-1
2.25 x 10 8ms-1
3.0 x 10 8ms-1
4.0 x 10 8ms-1
4.33 x 10 8ms-1
Correct answer is B
n = \(\frac{\text{speed in air }}{\text{speed in water }}\)
\(\frac{4}{3}\) = \(\frac{3 \times 10^8}{v}\)
v = 2.25 x 108ms-1
heat \( \to \) light \( \to \) sound \( \to \) kinetic
kinetic \( \to \) light \( \to \) heat \( \to \) electricity
heat \( \to \) kinetic\( \to \) electricity \( \to \) heat \( \to \) light
electricity \( \to \) kinetic \( \to \) heat \( \to \) light
heat \( \to \) sound \( \to \) kninetic \( \to \) electricity
Correct answer is C
No explanation has been provided for this answer.