Answer:
Area is a vector quantity.
Explanation:
A vector quantity has both magnitudes as well as direction. On the other hand a scalar quantity has only magnitude.
Out of given options,
Volume and mass is a scalar quantity because they don't have directions. While area can be taken as a vector quantity. The direction of area vector of a surface is along perpendicular to the surface.
Hence, the correct option is (d).
wavelength frequency and other
Explanation:
Waves travel through a medium: A medium is any substance or region through which a wave is transmitted. The speed of a wave is dependant on four factors: wavelength, frequency, medium, and temperature. Wave speed is calculated by multiplying the wavelength times the frequency (speed = l * f).
The answer is false because the laser doest burn the images onto the paper.
It depends a little on what it's mainly comprised of. For example, a planet of Tungsten would be twice as dense as the same planet made of Lead. however, given that this is just a hypothetical question, the answer is C.
