EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which question can be answered by physics concepts
A
how does a rainbow form?
B
Why do fireworks explode?
C
How do stalactites form?
D
How do different cleaning products work
Explanation: 

Detailed explanation-1: -The light rays from the sun enter the water droplet and undergo refraction at the surface, then it hits the other end of a droplet and gets internally reflected showing dispersion into seven colors. Hence rainbow formation is the combined phenomena of refraction, internal reflection, and dispersion as shown in figure.

Detailed explanation-2: -When sunlight hits a rain droplet, some of the light is reflected. The electromagnetic spectrum is made of light with many different wavelengths, and each is reflected at a different angle. Thus, spectrum is separated, producing a rainbow.

Detailed explanation-3: -Rainbows are formed when sunlight is scattered from raindrops into the eyes of an observer. Most raindrops are spherical rather than the often depicted ‘teardrop’ shape and it is this spherical shape that provides the conditions for a rainbow to be seen.

Detailed explanation-4: -A rainbow is a natural spectrum appearing in the sky after a rain shower. It is caused by dispersion of sunlight by tiny water droplets, present in the atmosphere. A rainbow is always formed in a direction opposite to that of the Sun. The water droplets act like small prisms.

Detailed explanation-5: -Refraction, reflection and dispersion of light by raindrops.

There is 1 question to complete.