Answer asap will give

Step-by-step explanation:

firstly,

V= πr²h

where, r=3.75 and h=6.21 inches=15.77cm

we have,

V=πr²h

=22/7×3.75×15.77

=185.66cm³

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: