Two of the types of infrared light, ir-c and ir-a, are both components of sunlight. their wavelengths range from 3000 to 1,000,000 nm for ir-c and from 700 to 1400 nm for ir-
a. compare the energy of microwaves, ir-c, and ir-
a.

The energy of electromagnetic waves can be calculated by using the following formula:

where:

is the Planck constant

is the speed of light

is the wavelength of the wave

Substituting the various wavelengths in the formula, we find:

IR-C:

-->

-->

IR-A:

-->

-->

Therefore, we see that IR-A have higher energy than IR-C.

a and c

c is 100% but i am confused in a

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.