Witnesses and documents are the main sources of evidence. A witness (Testis) is a person who gives evidence before any court. As per Bentham, witnesses are the eyes and ears of justice. Witnesses can be the person who gives valuable input for the case. It is through witnesses and documents that evidence is placed before […]
Indian Legal System > Civil Laws > Labour Laws > Industrial Disputes Act, 1947 > Authorities Under Industrial Disputes Act The main object of the Industrial Disputes Act is the investigation and settlement of industrial disputes. For this particular purpose, various authorities have been created under the Act. The adjudication of the industrial dispute has […]
Indian Legal System > Civil Laws > Labour Laws > Industrial Disputes Act, 1947 > Ambit of Definition of Industry In this article, we will be studying working of different organizations to check whether the organization comes under the ambit of definition of industry or not. In Bangalore Water Supply v. A. Rajappa, AIR 1978 […]
Science > Physics > Wave Motion > Effect of Temperature on the Speed of Sound In the last article, we have studied the factors affecting the velocity of sound. In this article, we shall solve numerical problems to study the effect of change of temperature on the velocity of sound. Example 01: At what temperature […]
Science > Physics > Wave Motion > Factors Affecting Speed of Sound in a Gas In the last article, we have seen expression for speed of sound in a gas. In this article, we shall study different factors affecting the speed of sound. Laplace assumed that the process of propagation of sound as an adiabatic […]
Science > Physics > Wave Motion > Speed of Longitudinal Waves In this article, we shall study to solve problems to find speed of longitudinal waves in fluids, solids, and rods. Expression for velocity of longitudinal wave in a fluid using dimensional analysis: The velocity (v) of longitudinal wave through a fluid is found to […]
Science > Physics > Wave Motion > Speed of Transverse Waves In this article, we shall study to solve problems to find speed of transverse wave in a stretched string and a solid. Expression for velocity of transverse wave on a stretched string using dimensional analysis: The velocity (v) of transverse wave on a stretched […]
Science > Physics > Wave Motion > Numerical Problems on Wave Motion Set – 02 Wave velocity in medium does not depend on the frequency. It depends upon the Elasticity and inertia of the medium. When medium changes the wavelength and velocity of wave changes but the frequency remains the same. Thus n1 = n2. […]
Science > Physics > Wave Motion > Numerical Problems on Wave Motion Set – 01 In this article, we shall study to solve problems to calculate frequency, wavelength, and velocity of wave. Formulae: v = n λ n = 1/T Wave number = 1/λ Velocity of radio waves = 3 x 108 m s-1 Where, […]
Science > Physics > Wave Motion > Wave Motion The motion that repeats itself after fixed intervals of time is called periodic motion. We know that oscillatory motion is a type of periodic motion. Oscillatory motion is defined as the to and fro motion of an object from its mean position. Examples: oscillation of simple […]