arwa and physics
Main purpose of this channel is: simplest approach to solve numericals especially physics ,want to help all students who cannot afford coaching or struggling with numericals or concepts etc..by solving cbse board papers / competitive papers
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Find the Q value of the following nuclear reaction
State Kirchhoff's laws. Apply these laws to find the values of current flowing in the three branches
A concave mirror has radius of curvature 20 cm. Calculate the distance of an object from the mirror
A copper wire of uniform cross sectional area carries a current of 3.4 A . The drift velocity of
An alpha particle and a deuterium ion are accelerated through the same potential difference. These
A tank is filled with a liquid of refractive index root 2 up to a height of 30 cm. A tiny bulb is
A particle of mass m and charge q moving with velocity v i is subjected to a uniform electric field
The ratio of potential difference across AB in the circuit shown for case (i) when switch S is
A point source of light in air is kept at a distance of 12 cm in front of a convex spherical surface
An electric field E is established between the plates of an air filled parallel plate capacitor with
Consider a capacitor of capacitance C with plate area A and plate separation d filled with air fig a
A slab Area A and thickness d/2 of dielectric constant K is inserted in a parallel plate capacitor
Three capacitor A, B and M each of capacitance C are connected to a capacitor N of capacitance 2C
A resistor of 400Ω an inductor of(5/π)H and a capacitor (50/π)μF are joined in series across an ac
A laser beam of wavelength 500 nm and power 5 mW strikes normally on a perfectly reflecting surface
An ac source is connected to a resistor and an inductor in series the voltage across the resistance
A straight conductor is carrying a current of 2 A in + x direction along it a uniform magnetic field
A wire of resistance R connected to an ideal battery consumes a power P if the wire is gradually
An ideal transformer is designed to convert 50 V into 250 V it draws 200 W power from an ac source
Which of the following transitions corresponds to the emission of the radiation of the maximum wave
A charged particle is projected along the axis of a current carrying loop which of the following
A fast moving neutron collides with the nucleus of Plutonium (Pu) thereby producing Xenon (Xe) and
Two small identical magnets are allowed to fall freely one through a vertical solenoid of 20 m made
A compound microscope consists of an objective lens of focal length 0.82 cm and an eyepiece lens of
When we move magnetic compass from point P to Q then which of the following statement is true
Plot a graph showing this variation in reading of micrometre on shifting the terminal B towards the
In the given diagram if terminal B is shifted towards the left then how will it affect the reading
If infrared radiation of 3 x 1011 Hz is used as incident radiation determine the reading of micro
If A charge particle is taken from A to B from two different path one path has resistance of 10Ω
If one charge particle is moved from A to C To B and another charge particle of equal magnitude is