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Physics General Science Questions and Answers

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If the wavelength of electromagnetic radiation is doubled, then what is the change in energy of photons?
Students Community, 2 years ago
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Students Community
According to quantum theory, how is the energy related with light of frequency v?
Students Community, 2 years ago
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Students Community
What is referred to the rate of flow of electric charge through a conductor?
Students Community, 2 years ago
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Students Community
According to which law, the electric current flows through a conductor is directly proportional to the potential difference applied across its ends?
Students Community, 2 years ago
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Students Community
If a metallic wire is stretched to double its original length, what is the change in resistance of the wire?
Students Community, 2 years ago
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Students Community
If Q amount of charge flows through a conductor in time t, then what is the electric current (i)?
Students Community, 2 years ago
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Students Community
Among conducting copper coil, electric heating coil, semiconductor diode and rheostat, which device is non-ohmic?
Students Community, 2 years ago
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Students Community
Which substances are feebly magnetised in the direction of magnetic field, when placed in strong magnetic field?
Students Community, 2 years ago
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Students Community
What is referred to the total number of magnetic field lines of force crossing through any surface, normally?
Students Community, 2 years ago
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Students Community
By which property, it opposes any change in the current flowing through it by inducing an EMF in itself?
Students Community, 2 years ago
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Students Community
A mobile phone charger is an example of which type of transformer?
Students Community, 2 years ago
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Students Community
The working of a transformer is based on which principle?
Students Community, 2 years ago
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Students Community
Which device is used to control current in AC circuit?
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Students Community
According to which law, the current induced in a circuit due to a change in magnetic flux is directed to oppose the change in flux?
Students Community, 2 years ago
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Students Community
What is the value of angle of dip at magnetic poles?
Students Community, 2 years ago
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Students Community
What is the direction of a magnetic field lines in a magnet?
Students Community, 2 years ago
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Students Community
In which region of magnet, the strength of magnet is maximum?
Students Community, 2 years ago
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Students Community
Among aluminium, quartz, nickel and bismuth, which one is a ferromagnetic material?
Students Community, 2 years ago
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Students Community
Which material is used for making electromagnets or temporary magnets?
Students Community, 2 years ago
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Students Community
What is the unit of relative density in SI Unit?
Students Community, 2 years ago
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DeepaliSingh
Students Community
Which physical quantities are independent of other physical quantities?
Students Community, 2 years ago
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DeepaliSingh
Students Community
What is the level of loudness, which a human being can tolerate?
Students Community, 2 years ago
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Students Community
Which form of mechanical energy produces sensation of hearing?
Students Community, 2 years ago
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Students Community
Green house effect is the heating up of the Earth’s atmosphere due to which type of rays?
Students Community, 2 years ago
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Students Community
Frequency unit’s hertz is named in honour of which scientist?
Students Community, 2 years ago
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Students Community
When a longitudinal wave moves through a certain medium, which quantity is transmitted through the medium?
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Students Community
Which type of vibrations occur in a body in the absence of any external force on it?
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Students Community
What is the time period of a second pendulum?
Students Community, 2 years ago
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Students Community
What is the motion of a ball dropped in an imaginary tunnel which is dug along the diameter of the Earth?
Students Community, 2 years ago
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Students Community
Which type of motion repeats itself at regular intervals of time about fixed path?
Students Community, 2 years ago
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Students Community
Definition of force can be started from which law of motion?
Students Community, 2 years ago
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Students Community
Which scientist gave laws of motion?
Students Community, 2 years ago
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Students Community
When a running car stops suddenly, the passengers tend to lean forward, what is responsible for this?
Students Community, 2 years ago
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Students Community
When the net effect produced by a number of forces acting on a body is zero, then what types of forces act on it?
Students Community, 2 years ago
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Students Community
If the size of object and size of image is equal, then at which position the object is placed?
Students Community, 2 years ago
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Students Community
If a mirror is half covered by black paper, then what is the size of the image formed?
Students Community, 2 years ago
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Students Community
If a man runs towards mirror at a constant speed, then what is the speed of his image with respect to man?
Students Community, 2 years ago
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Which type of image is formed by a plane mirror?
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Students Community
Which phenomenon is referred to the rebouncing back of light rays in the same medium after striking on a smooth surface?
Students Community, 2 years ago
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Students Community
Among Sun, candle, electric lamp and Moon which one is not a luminous object?
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Students Community
Which quantity is a measure of inertia?
Students Community, 2 years ago
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Students Community
Which among the spring force, muscular force and electrostatic force is a non-contact force?
Students Community, 2 years ago
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Students Community
What is an external agent that changes the state of the object?
Students Community, 2 years ago
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Students Community
Why do not action reaction forces cancel each other because they?
Students Community, 2 years ago
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Students Community
What is the product of force and time-interval called?
Students Community, 2 years ago
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Students Community
Which force resist the relative motion of two surfaces in contact?
Students Community, 2 years ago
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Students Community
Among the static friction, limiting friction and kinetic friction, which has the maximum value?
Students Community, 2 years ago
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Students Community
How are angle of friction and angle of repose related to each other?
Students Community, 2 years ago
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Students Community
On which principle, the washing machine works?
Students Community, 2 years ago
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Students Community
For the revolving of celestial bodies, which force provide the necessary centripetal force?
Students Community, 2 years ago
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