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Certain reactions take place with the help of an electric current.Example: Decomposition of acidulated water to give hydrogen and oxygen g..

Question: SI unit of acceleration is __________. 1. 2. 3. 4. Answer: ..

Question: Identify the v- t graph representing uniform velocity. 1. 2. 3. 4. Answer: ..

Question: What is the wavelength of sound waves produced in air by a vibrating tuning fork whose frequency is 256 Hz when the velocity of sound in air is 330 m s - 1 ? Answer: v = f 330 = 256 = = 1.3 ..

The two isotopes are..

Potential energy = mgh = mg(h - x) [Height from the ground is (h - x)] Potential energy = mgh - mgx Kinetic energy The body covers the distance x with a velocity v. We make use of the third equation of motion to obtain velocity of the body. v 2 - u 2 = 2aS Here, u = 0, a = g and S =..

W = F x S Force acting on the object is given by F = mg [Newton's second law of motion] Mass of the object (m) = 5 kg Distance moved = 2m Therefore, Work done = F x S = 98 J 02. How much work is done, when a force of 25 N displaces an object through 10 m, in the direction of the force ap..

Alcohols on oxidation give aldehydes. The aldehydes on further oxidation give carboxylic acids..

Question: Who was Gregor Mendel and what was his contribution to science? Answer: Gregor Mendel was an Austrian monk who first started the study of inheritance in an organized manner. This was the beginning of genetics and therefore, he is called the Father of Genetic..

Gravitational Force between two Light Objects - Let us now calculate the force of gravitation existing between two unit masses separated by a unit distance. m 1 = 1 kg m 2 = 1 kg d = 1m G = 6.6734 x 10 - 1 1 Nm 2 /kg 2 This is a very weak force. To find Force existing between two objects of masses ..