In a uniform magnetic field, the field lines are
In a uniform magnetic field, the field lines are parallel equidistant straight lines. Following are the properties of the magnetic... View Article
Latest Posts
When light goes from an optically denser to an optically rarer medium, it always bend —- the normal
As the light goes from an optically denser to an optically rarer medium, it bends away from the normal. Hence,... View Article
Which of the following characteristics of planets is a feature of Saturn?
The density of Saturn is less than the density of water
When nylon is rubbed with amber, then
nylon: positively charged amber: negatively charged
Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon
Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon relative position... View Article
To completely describe force acting on a body, We need to
When a batsman hits a ball for six, the speed with which ball crosses the boundary depends on the magnitude... View Article
Use of eddy currents is done in the following except (a) moving coil galvanometer (b) electric brakes (c) induction motor (d) dynamo
Answer: (d) dynamo Use of eddy current is done except in dynamo. Eddy current Eddy currents are currents that circulate in... View Article
Device used to convert mechanical energy into electrical energy is
Device used to convert mechanical energy into electrical energy is called dynamo.
A boy while playing with two magnets got familiar with their attractive and repulsive properties. He observed the magnets attracting and repelling each other from a distance.From this we can conclude that
In the above question magnetic nature of force is observed, magnets are attracted or repelled through a certain distance, from... View Article
What is Pressure?
The pressure is thrust per unit area, hence it is directly proportional to thrust and inversely proportional to area. The... View Article
The word electricity is derived from
Electricity is derived from the Greek word electron. The meaning of electron is amber which is either a yellow or... View Article
When a glass rod is rubbed with silk cloth, then what kind of the electric charge produce on the glass rod
Answer: Silk cloths: Negatively charged Glass rod: Positively charged When the glass rod is rubbed with silk clothes, glass quickly... View Article
Force can be defined as
Force can be defined as an effort that changes the state of motion or shape of an object. It can... View Article
What kind of image does a telescope form?
A telescope forms real and highly diminished image. The real image produced is inverted; i.e., the top and bottom are reversed. When... View Article
How many lenses does a compound microscope use?
A compound microscope uses 2 lenses. The simplest form of a microscope is the magnifying microscope and is good to about ten times... View Article
Things become visible due to
For things to be visible there are two factors. First is when an object reacts with its surroundings. An example... View Article
Which of the following requires application of force?
Force is defined as any effort that changes the state of motion or shape of an object. Thus all of... View Article
What is virtual image?
The virtual image is an upright image that can be achieved where the rays seem to diverge but do not... View Article
Light always travels along a
Light always travels in a straight line path.
Rahul is standing in front of a plane mirror. The distance between Rahul and his image is 150cm. If Rahul’s distance from the mirror is x. What could be the possible value of x?
x = 75 cm, as for a plane mirror the distance between the object and the mirror is equal to... View Article
