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SPECIFIC HEAT CAPACITY AND HEAT CAPACITY

Specific heat capacity Specific heat capacity can be defined as it is the amount of heat energy required to raise the temperature of unit mass of a substance through one degree Centigrade. Different bodies have different values of their specific heat depending upon their nature. Some of the examples are given below How we can derive formula for specific heat? Based on a simple activity we can derive a formula for specific heat. Take two beakers and name them as A and B. Fill the two beakers with some water. Let us assume that the mass of water in both the beakers be 1 kg. And the water present in both the beakers is at room temperature. Let us assume that we have to raise the temperature of water in beaker A to 50 0 centigrade. And we have to raise the water in beaker B to 70 0 Centigrade for a given constant time. In order to do so definitely we have to supply more heat ene...

Rules to draw ray diagrams & sign convention rules for spherical mirrors

RULES TO DRAW RAY DIAGRAMS FOR SPHERICAL MIRRORS Rule 1: The ray passing parallel to principal axis, after reflection passes through focus (or appears to be coming from focus in case of convex mirror) Rule 2: The ray passing through Focus (or appears to be passing through focus in case of convex mirror), after reflection becomes parallel to principal axis. Rule 3: The ray passing through principal axis comes back in the same path after reflection. ...

characteristics of images formed by plane mirror

PROPERTIES OF IMAGES FORMED BY PLANE MIRROR: (NOTE: In terms of optics “object” is referred to any thing which is present in front of a mirror, and “image” is referred to the image of the object formed, whether it is a virtual or real. About virtual and real images we will learn later in this concept) 1)1) Object distance is always equal to Image distance 2)2) Object size (width and height) is always equal to Image size.(magnification=+1, about magnification we will learn later in the concept) 3)3) Image is laterally inverted (right becomes left and left becomes right) 4) The image formed in the mirror is virtual. TYPES OF IMAGES: VIRTUAL IMAGE: These images are formed when diverged reflected rays are extended back. These are imaginary but not real. (example our face inside a plane mirror). These images cannot be captured on the screen. REAL IMAGES: These images are formed when the reflected rays ...

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