Regular and Diffused Reflection

untitled

“Regular reflection: Regular reflection of light [even sound] occurs at regular surfaces like plane mirrors, concave or convex mirrors. The reflected light observes predictable laws and becomes useful in other conditions.For example a convex reflector of the rear view mirror

Laws of Reflection

untitled

“If the reflecting surface is very smooth, the reflection of light that occurs is called specular or regular reflection. The laws of reflection are as follows: 1) The incident ray, the reflected ray and the normal to the reflection surface

What makes Things Visible

untitled

“A particle of light, called a photon, travels at the speed of light toward the object. The photon hits an atom, or particle of matter, on the object. The atom absorbs the energy from the light and releases a new

Protection against Earthquakes

untitled

“Protection against Earthquakes: 1) If you are in bed, hold on and stay there, protecting your head with a pillow. You are less likely to be injured staying where you are. 2) Find a clear spot, away from buildings, trees

SEISMOGRAPH

untitled

A seismograph is the device that scientists use to measure earthquakes. The goal of a seismograph is to accurately record the motion of the ground during a quake. The Richter scale is a standard scale used to compare earthquakes. It

Crust

untitled

“The crust is the outermost solid shell of a rocky planet or natural satellite, which is chemically distinct from the underlying mantle. The crusts of Earth, the Moon, Mercury, Venus, Mars, Io, and other planetary bodies have been generated largely

Causes of Earthquakes

untitled

Earthquakes are related to compressional or tensional stresses built up at the margins of the huge moving lithospheric plates that make up the earth’s surface. The immediate cause of most shallow earthquakes is the sudden release of stress along a

What is an Earthquake

untitled

Movements within the Earth’s crust cause stress to build up at points of weakness, and rocks to deform. Stored energy builds up in the same way as energy builds up in the spring of a watch when it is wound.

Lightning Conductors

untitled

“Damages due to lightning flashes are very common. But with the help of a lightning conductor we can save our large buildings on which we have spent lots of money. The lightening conductor consists of a large no of conductors

Lightning Safety (outdoor)

untitled

If no structural shelter is available, hard-topped automobiles offer sufficient lightning protection. Roll up the windows and don’t touch any part of the metal frame (like resting your arm on the window) or any wired device in the vehicle (including

Please Download ANDROID APP for Easy Local Home Tutor Search