I want to examine the surface of a planet that is completely covered by a thick layer of clouds all the time. What wavelength of electromagnetic radiation would I be smartest to use?

A. visible light

B. x-rays

C. radar waves

D. ultra-violet

E. none would work

C

Explanation:

Radar waves will be useful to examine the surface of the planet.

Radio waves are the shorter wavelength microwaves ranging approximately 1 cm.

Short wavelength causes large reflection from large objects.  These waves are useful to detect smaller objects like water drops in the cloud.

They can penetrate clouds and that is why they are used in weather forecasting, air traffic control, etc.

whichever one it is, it's definitely not one that you included on the list you provided.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is