physics problems involving measurements

Suppose X = a - b Let D a and D b be absolute errors in measurements of quantities a and b, values of a and b and D X be maximum error in X. Maximum absolute error in X = Maximum absolute error in a + Maximum absolute error in b From equations (1) and (2) it is evident that, when ..

Let D a and D b be absolute errors in measurement of quantities a and b and D X be maximum possible error in X. ..

The scope of physics is very large. Physics deals with a wide variety of disciplines such as mechanics, heat and light. Study of mechanics helps us to know the forces involved in the flight of a bird, walk of a man and so on. The study of heat helps us to know the ris..

Physically, a wave involves the propagation of energy. This transfer of energy by a traveling wave is expressed in terms of the intensity I. Intensity of sound waves is defined as the average energy transported per second per unit area perpendicular to the direction of pro..

>RADAR which means 'Radio Detection And Ranging' is used to determine the distance of moon from earth. The method involved is reflection technique. To measure the distance of moon, a signal is sent from the radar and is received by the detector as a reflected signal. Let t be th..

The second law of motion improves our understanding of most types of motion involving a force. We get to understand that if a body is pushed with a stronger force, it accelerates at a faster rate and vice versa. We understand that if two different bodies are pushed with an equal force, th..

. The experiment was carried out at night, so that the flash was more easily visible. They obtained the velocity of sound as 1435ms - 1 . When sound passes through a thin rod, the velocity is given by the formula Where l is the Young's modulus of the material of the rod and r is its density. For st..

Intensity and Loudness of Sound - Physically, a wave involves the propagation of energy. This transfer of energy by a traveling wave is expressed in terms of the intensity I. Intensity of sound waves is defined as the average energy transported per second per unit area perpendic..

. It is put in parallel to the circuit element across which the voltage is to be measured. Because of its high (R + R @ R). It draws a very small current and thus does not disturb the circuit. If the full scale deflection of the galvanometer occurs for a current I o and the voltmeter is t..

Everything that we use in our daily life is ultimately governed by principles of physics. All gadgets we use everyday at home, bicycles and cars, all different types of machinery and instruments, work on principles of physics. Hence to understand even the elementary working of t..