Arrange the following according to increasing wave length. 

A. Infrared

B. Ultraviolet 

C. Microwave

D. Gamma 

Choose the correct answer from the options given below: 

The correct answer from the options given is: D, B, A, C
Important PointsGamma Rays (D):

• Gamma rays have the shortest wavelengths and the highest frequencies in the electromagnetic spectrum.
• They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and areas around black holes.
• On Earth, gamma rays are generated in nuclear explosions and in laboratories.

Ultraviolet (B):

• Ultraviolet light has a shorter wavelength than visible light but longer than gamma rays.
• The sun emits ultraviolet light, but most of it is absorbed by the Earth's atmosphere, protecting us from its harmful effects. However, some of it does reach the surface and can cause sunburn.

Infrared (A):

• Infrared radiation has a wavelength longer than visible light but shorter than microwaves. We can feel infrared radiation as heat.
• It's emitted by anything that's warmer than absolute zero (-273.15 Celsius), including the human body and objects around us.

Microwaves (C):

• Microwaves have the longest wavelengths among the four options.
• They're used in various applications like communications (including cell phones and WiFi), radar, and of course, microwave ovens
• . In the electromagnetic spectrum, they sit between radio waves (which have even longer wavelengths) and infrared radiation.