Aviolently rotating column of air is formed around a region of extremely low air pressure above land. which of these weather conditions is most likely to follow? blizzard cyclone tornado hurricane

Option (C)

Explanation:

A tornado is considered to be huge, powerful rotating pillar of air that extends from a thunderstorm touching the ground surface. When warm, moist air interacts with cool, dry air mass, then it results in instability within the atmosphere. Due to the changing direction of wind and increasing wind speed with respect to height, it creates a spinning effect in the lower part of the atmosphere. This air that rises up tilts the rotating air extending vertically from the ground surface. It can have up to a speed of about 300 mph (miles/hour), which are very destructive. It can cause damages to the buildings, trees and vehicles.  

Hence, the correct answer is option (C).

A) Intensity = 1.48 W/m²

B) Average infrared energy density = 4.93 x 10^(-9) J/m³

C) Magnitude of the infrared electric field = 31.2 N/C

D) Magnitude of the infrared magnetic field = 1.04 x 10^(-7) T

Explanation:

-We are given that;

Intensity of infrared radiation is 2.2m away from the light bulb.

-Power of light bulb = 100W

-Since 10% Electromagnetic energy from an incandescent lightbulb is visible light, thus 90% of electromagnetic energy emitted by light bulb is infrared.

A) The power of the infrared radiation would be = 90% of the total electromagnetic power emitted by the light bulb.

Thus,

power (P) = 90% x 100 = 90 W

The formula for intensity of radiation for an area (A) is given as;

I = P/A

Where P is power and A is area.

Area = 4πR²

R = 2.2m

Thus, A = 4π x 2.2² = 60.82 m²

Thus, I = 90/60.82 = 1.48 W/m²

B) The equation for the average energy density is given as;

I = u'c

Where I is intensity and u' is average energy density and c is the speed of electromagnetic wave in air which is 3 x 10^(8) m/s

Thus, making u' the subject,

u' = I/c

u' = 1.48/3 x 10^(8)

= 4.93 x 10^(-9) J/m³

C) The equation that defines the relationship between energy density and maximum magnitude of the magnetic field is given as;

u' = B(max)²/2μo where μo is permeability of free space and given as 1.257 x 10^(-6) T.m/A

Thus, B(max) = √(2μo•u')

B(max) = √(2 x 1.257 x 10^(-6) x 4.93 x 10^(-9)) = 1.04 x 10^(-7) T

Maximum value of magnitude of electric field is given as;

Emax = cBmax

Thus, Emax = 3 x 10^(8) x 1.04 x 10^(-7) = 31.2 N/C