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Definition: The electric field in a region is shown by continues lines (also known as lines of force). Field line is an imaginary line along which a positive test charge will move if left free.
Electric lines of force because of an isolated positive charge, isolated negative charge and because of a pair of charge are shown below
Does the force constant of a spring changes if it is cut into parts? Ans) Force constant does not change because it is a constant
Q. What is an optical fibre and dispersion? Write the expression for angle of deviation.
Tin: Atomic number 50 Symbol Sn Atomic weight 118.69 Discovery Known since ancient
Electrical measuring instruments: Quantities of electrical current, voltage and resistance are measured using instruments called meters. Until the advent of electronic displays
The velocity of a body was noted to be constant during five minutes of its motion. What was acceleration during this interval its? As velocity of body remains same during given
Ask queA cart of weight 25 N is released at the top of an inclined plane of length 1m, which makes an angle of 30° with the ground. It rolls down the plane and hits another cart of
Non-Horizontally Launched Projectiles Assume a cannonball being launched at an angle from cannon atop an extremely high cliff. Suppose as well in which the cannonball does not
Which colour has got the minimum angle of deviation?
i need a full explanation on magnetism
It is an instrument used to view pure spectrum. It makes dispersion without deviation with the help of n crown prisms and (n - 1½ flint prisms alternately arranged in a tabular str
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