A hollow insulated conduction sphere is given a positive charge of 10μC.What will be the electric field at the centre of the sphere if its radius is 2 meters?
The kinetic energy acquired by a mass m in traveling a certain distance d.starting from rest. under the action of a constant force is directly proportional to
A fly is sitting on the objective of a telescope pointed towards the moons what effect is impacted in a photograph of the moon taken through the telescope
The maximum and minimum magnitudes of the resultant of two given vectors are 17 units and 7 units respectively.If these two vectors are at right angles to each other.the magnitude of their resultant is
Surface and ground water sources are contaminated by various human activities. Which of the following is not a human activity that causes contamination in fresh water
A compound X has all of the properties below. It is a liquid at 25°C it mixes completely with water it reaets with aqueous sodium hydroxide, What could X be?
Surface and ground water sources are contaminated by various human activities which of the followings is not a human activity that causes contamination in fresh water
In the cyclic structure of the glucose when the position of atoms on carbon 1 is called one isomer changes to other. These isomers of glucose are called:
Increased awareness of environmental issues has led chemists to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn. Which one is not the guiding principle
Gas is enclosed in a container of 20cm3 with the moving piston. According to kinetic theory of gases, what is the effect on freely moving molecules of the gas if temperature is increased from 20°C to 100C.
John hogg separated blue green algae and bacteria (prokaryotes) form nucleated protists and placed them in a separate group called Monera, within the kingdom.
The hubble space telescope will search for planets around other stars, a key to the ___________ for extra terrestrial life, and examine interstellar dust and gases out of which stars are born.
The director of the Miss America pageant continues to maintain that the judges ultimate choice is based less on the physical appearance of the contestant as on her intelligence talent and personality
Long popular among the connoisseurs of indian music Ravi Shankar first impressed western listeners with his phenomenal technical virtuosity but they soon came to appreciate his music as an artful expression of an older cultures musical insights
Traffic speed limits are set at a level that achieves some balance between the danger of _______ speed and the desire of most people to travel as quickly as possible
The newest fiber optic cables that carry telephone calls cross. country are made of glass so ______ that a piece 100 miles thick is clearer than a standard windowpane
The revelation that shakespeare wrote certain of his plays expressly for queen elizabeth i lends credence to the theory that the dark lady of the sonnets was not shakespeares mistress nor any other woman the playwright had romanced but in fact the queen herself
