Recently Active Physics Questions

Particles P and Q of mass 20gm and 40 gm respectively are simultaneously projected from points A and B on the ground.The initial velocities of P and Q make 45° and 135° angles with points A and B on the ground.Each particle ...

ok got it cleared myself! ...

got it thanks! ...

If for a system of N particles of different masses m1, m2....mN with PVs r1, r2.....rN and corresponding velocities v1, v2...vN such that Σvi = 0, then 1) The total momentum must be 0. 2) The total angular momentum must be i ...

isn't it that the electric field at the centre of a uniformly charged disc should be zero?? ...

3 equal charges q are places at the corners of an equilateral triangle f side a . A charge Q is placed such that its distance 4m each corner is r then the force xperienced by Q WILL BE???? 2) 2 parallel plate capacitors of ca ...

I got some serious problems with the answers provided to the following questions- 1. A: The current in RLC circuit driven by a sinusoidal voltage may lead,lag or be in phase with the applied voltage. R: Series resonance does ...

The Earth travels 10000km per hr around the sun but we aren't swept off frm earth......why? ...

*Image* agreed with the equations, except one , that is N = 2 they have given that force applied by stick on the ring is 2 N, that means ( N2 + (μN)2 )1/2 = 2 but with this i didnt get an integral answer. so i tried with N = ...

1. The displacement y of a particle executing periodic motion is given by y = 4 cos2(t/2) sin (1000t). The above expression may be considered to be a result of superposition of how many waves? A) 2 B) 3 C) 4 D) 5 2. A functio ...

A body A weighin 22N is positioned on the end of a slender horizontal plank fixed at one end (mass of the plank is negligible). A force (vertically downwards) on A causes a deflection of 12.5mm. The natural angular frequency ...

What is the angle between (vector P + vector Q) and (vector P - vector Q)? how to calculate it???????please help ...

What is the problem with cosine curve? ...

i'm confused, pl help 1]q on left of 1 2] pd b/w 3,4 *Image* ...

Please Prove this result: The net electric charge of a conductor resides entirely on its surface. ...

*Image* The figure shows two blocks in contact sliding down an inclined surface of inclination 30°. The friction coefficient between the block of mass 2kg and the incline is μ1, and that between the block of mass 4kg and th ...

Are damped oscillations periodic? ...

I don't whether it's solvable or not. It came as a thought to me while I was filling water in bottles. So Here I " Go " : A cylindrical tank of radius " r " contains water upto height " H " . There is a hose at height " h " f ...

Why does the earth move in an eliptical orbit? ...

*Image* In the given figure, the spring has spring constant k . The pulley is light and smooth , the spring and the string are light. The suspended block has a mass m. If the block is slightly displaced from its equilibrium p ...

*Image* calculate the charge flown through the resistor from time 10 s to 30 s... the resistance is variable.... ...

a transverse wave is described by the equation A sin2(wt - kx ). the maximum particle velocity is equal to wave velocity if the value of A is ...

y=Acos(wt-kx) y=Asin(wt+kx) Can they form stationary waves? I say yes. My book says no. Need a confirmation. ...

A plano-convex lens has a thickness of 4 cm. When placed on a horiz. table , with the curved surface in contact with it , the apparent depth of the bottom most pt. of the lens is found to be 3 cm. If the lens is inverted such ...

A wire is bent in form of as shown in the fig. It is suspended from the pt. where curved portion starts ( curved portion is semicircular) .Find the value of a in terms of r such that the straight portion remains horizontal. * ...

Hi! Everyone.... We have our exams on 15th May for the reshuffling of batches. Wanna be in the supreme batch..... So, will only solving problems from FIITJEE Study material help? or suggest me some good books please? This tim ...

The bob of a simple pendulum is a hollow sphere filled with water . how will the period of oscillation change if the water begins to drain out of the hollow sphere ? ...

what is the frequency of the K.E of a body in S.H.M if the time period of S.H.M is T ? ...

A helicopter can hover when the power output of its engine is " P " . A second helicopter is an exact copy of the first one, but its linear dimensions are half those of the original. What power output is needed to enable this ...

in a simple pendulum the breaking strength of the string is double the weight of the bob. the bob is released from rest when string is horizontal. if the sting breaks when it makes an angle ∞ with the vertical. then find ∠...