Question

____ have more energy than ____.

Ultraviolet rays; X-Rays

Radio waves; microwaves

Radio waves; visible light

Infrared rays; radio waves

Answer 1

ultraviolet rays; X-rays

Answer 2

Answer : The correct option is, Infrared rays; radio waves

Explanation :

Electromagnetic waves : It is a wave in which two vectors are vibrating mutually perpendicular to each other and in direction of the wave. The two vectors are electric field and magnetic field.

The gamma-rays, x-rays, ultraviolet-rays, infrared-rays, microwaves and radio-waves are the electromagnetic waves.

The increasing order of electromagnetic waves in terms of wavelength will be,

`\text{gamma-rays}<\text{x-rays}<\text{ultraviolet-rays}<\text{infrared-rays}<\text{microwaves}<\text{radio-waves}`

As,
`E=\frac{hc}\lambda}`

According to the formula, the energy is inversely proportional to the wavelength. That means higher the wavelength, lower will be energy and vice-versa.

The decreasing order of electromagnetic waves in terms of energy will be,

`\text{gamma-rays}>\text{x-rays}>\text{ultraviolet-rays}>\text{infrared-rays}>\text{microwaves}>\text{radio-waves}`

Therefore, infrared rays have more energy than radio waves.