Recently Active Physics Questions

In the relation; P= α/β e -αZ/kθ ,where P is pressure,Z is the distance,k is Boltzmann's constant and θ is the temperature.The dimensional formula for β will be: a)[L2] b)[ML2T] c)[MT-1];here T is raised to the power -1 ...

a heat conducting piston can freely move inside a closed thermally insulated cylinder with an ideal gas. in equilibrium the piston divides the cylinder into 2 equal parts , the gat Temp. being equal to T0 . the piston is slow ...

if sin β=1/5 sin(2α+β) show that tan(α+β)=3/2 tan α ...

Q.1. A man uses a concave mirror for shaving.He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged.Find the focal length of the mirror. Q.2.Find the diameter of the image of th ...

Q.1. A man uses a concave mirror for shaving.He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged.Find the focal length of the mirror. Q.2.Find the diameter of the image of th ...

1.) Two +ve charges Q and 4Q are fixed at distance 12cm. Sketch lines of force and locate null point. 2.) Two point charges q and 4q are kept at a distance r from each other. While showing electric line plot indicate the neut ...

Hey friends plz help me in this....... I want to clear my concept........ What will be the Eq. resistance b/w the points A and B.... Each resistance in the circuit is equal to 5 Ω *Image* According to CBSE syllabus...... Req ...

Hey...guys..... can neone plz help me..... i am totally confused abt this concept of charging nd discharging of the capacitors.... what does the term Q = Q0 e-t/RC represent ???? same is the case for current , power, energy a ...

In which case would boiling of 1 kg water be quicker a)In a flat pan of negligible height b)In a very thin capillary of length 76cm ...

*Image* P-V diagram of same mass of a gas are drawn at two different temperatures T1 and T2 . Explain whether T1 > T2 or T2 > T2 My answer was T1 > T2 but given is T2 > T2 am i correc t or wrong also i do have a e ...

Can you friends plz help me in this...... All resistances are equal to RΩ. Calculate the effective resistance b/w A and B. *Image* ...

*Image* Consider the situation shown in the figure. the capacitor A has a charge q on it whereas B is uncharged. What amount of charge will appear on the capacitor B a long time after the switch S is closed: (A) zero (B) q/2 ...

Q) Which of the following statements is/are false? a) If two particles are neither approaching nor separating from each other, then their relative velocity is zero. b) Four dogs are running along a line in same direction, suc ...

Energy is stored in : a) positive plate of the capacitor b) negative plate of the capacitor c) both the plates of the capacitor d) none ...

http://www.allaboutcircuits.com/vol_1/chpt_10/13.html I have resisted a lot in the past against this method. I really feel that this method takes away the joy of solving complex circuits and should be studied only at an engin ...

A Particle P has a mass of 10mg and a charge of -0.01 µC. Each plate has a surface area 100cm2 on one side. What potential difference V should be applied to the combination to hold the particle P in equilibrium? *Image* ...

Can anyone tell what is the direction of electric field on the surface of the conductor..... Is it Radial or tangential???????????? ...

1)An astronaut jumps from an aeroplane.after he had fallen 40m,then his parachute opens.Now he falls with a retardation of 2m/s2 and the earth with a velocity of 3m/s.What was the height of the the aeroplane?For how long astr ...

An open tank 10m long and 2m deep is filled upto a height 1.5m of oil of specific gravity 0.80.The tank is accelerated uniformly from rest to a speed of 10m/sec.What is the shortest time in which this speed may be attained wi ...

The cube shown below has 5 faces grounded. The sixth side, insulated from the others, is held at a potential V0. What is the potential at the center of the cube and why? *Image* ...

A spherical capacitor has inner and outer radius a,b respectively.The space is suddenly filed with a medium of dielectric constant k=1.The charge on inner plate is +q,outer plate -q.Suddenly,the medium becomes conducting with ...

1.A block of mass m is placed on a smooth wedge of inclination theta.The whole system is accelerated horizontally so that the block does not slip on the wedge. What is the magnitude of force exerted by the wedge on the block ...

Fig shows 2 identical blocks of mass m kept on a smooth floor. Block A is connected with a just straight string and block B is connected to rear wall with a relaxed spring. Assume that the floor of the car is smooth and exert ...

Sat, Jul 3 12:55 PM New Delhi, July 3 -- Just as the IIMs had to cope with glitches in their online entrance process, the IITs (Indian Institutes of Technology) are also drawing flak for the online admissions introduced this ...

Everyone of you might have read that the electric field inside the conductor is 0 as the free electrons migrate to the surface of the conductor..... but how does the electric current exist inside the conductor. Electric curre ...

A curious phenomenon was observed by an experimenter working with a very sensitive galvanometer while sitting on a chair at a table. The galvanometer was secured on a wall and its ends of its winding were connected to an open ...

actually its not a question it something hat i hv thought over for a long time..... we generally assume in guasss law that electric field is symmetric like a pnt charge that can be easily proved now lets try to find the elect ...

In a uranium ore sample, the ratio of U238 to Pb206 nuclei is 1/3 Assuming that all the lead present in the ore is final stable product of U238 , find the age of the ore (in 109 year) if half life of U238 is 4.5 × 109 year. ...

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Can anyone post the dates of the beginning of semesters in different colleges? Like BITS, VIT, etc...I was curious, just wanted to know. ...