Recently Active Physics Questions

*Image* Ques1) Two blocks of masses M1 and M2 (In the above figure) are placed in contact with each other as shown. The voefficient of friction b/w M1 and platform is 2 \mu and that b/w block M2 and platform is \mu . The plat ...

can a high jumper clear a height even if his center of mass does not clear the height ? give reasons for your answer. ...

A tube of insufficient length is immersed in water (ST=0.07 N/m) with 1 cm of it projecting vertically upards outside water.What is the radius of meniscus???Radius of tube = 1mm ...

could anyone pls tell me why is pressure a scalar quantity while it is given as P = F/A where F force is a vector quantity and A area is a scalar quantity. ...

*Image* Ques) What are the size and direction (up or down) of current i where all resistance are 4 ohm and all batteries are ideal and have an e.m.f of 10V? ...

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Here is a problem that i got stuck onto.Pls help me out. 1) A non-conducting sheet of large surface area and thickness 'd' contains uniform charge distribution of density 'ρ'.find the electric field at a point 'P'inside the ...

*Image* A block M with smooth fixed pulleys B and D is on a smooth horizontal surface. A block m is placed on the smooth inclined face of M is connected to one end of an extensible string passing over the pulleysB and D and t ...

*Image* Each resistance is r.Show that the equivalent resistance b/w M and N is zero. ...

A CAR IS TRAVELING WITH A LINEAR VELOCITY v ON A CIRCULAR ROAD OF RADIUS R IF IT IS INCREASING ITS SPEED AT THE RATE OF 'a' MS^-2 THEN THE RESULTANT ACCELERATION WILL BE wHAT AND HOW ?? ...

*Image* pls explain hw cn we find magnitude and direction of acc. ...

suppose u are moving parallel to a metal plate at a speed of electron in the current. do u measure a magnetic field to be zero ???????????????? ...

it is a lens whose one surface is silvered.................tell me about sign convention..........first there is refraction then reflection and then again refraction...... we take left to right positive then what about sign c ...

*Image* A charged capapcitor C1 is discharged through a resisitance R by Putting switch S in position 1 of circuit as shown in the figure. When discharge current reduces to I 0 , the switch is suddenly shifted to position2. C ...

*Image* A charged capapcitor C1 is discharged through a resisitance R by Putting switch S in position 1 of circuit as shown in the figure. When discharge current reduces to I 0 , the switch is suddenly shifted to position2. C ...

Ques) A block is projected up aplne at 30° to the horizontal. It returns to it's starting point with 1/3 rd of it's initial velocity. Calculate the coefficient of kinetic friction b/w the block and the plane. ...

*Image* the height of man is H........................so the minimum height of mirror is H/2..............BUT HOW DO WE KNOW THAT LIGHT FROM KNEE AND HEAD REACHES OUR EYE????????/ ...

A 1 kg block of wood sits on the top of an identical block of wood, ehich sits on the top of a flat level table made of plastic. The coefficient of static friction b/w the wooden surfaces is @1, and the coefficient of static ...

Plz tell me how 2 access the assnmnts??????????? ...

why is the charge on a charged spherical conductor assumed to be concentrated at the centre? ...

a rope passes over a fixed pulley such that it makes an angle (A) at its centre. if (u) be the coefficient of static friction between the rope and the pulley, determine the relation existing between the values T1 and T2of the ...

i am starting this thread to start a discussion on rotational motion as i have done in "optical isomerism" in organic section !!! i start with a brief summary....everyone is welcome to put forward his/her coherent views on th ...

A simple pendulum of length "l" carries a bob of mass m.If the breaking strength of the string is 2mg , the maximum angular amplitude from the vertical can be ___θ I tried and tried but without success.Please help me.( Kindl ...

A particle moves in a horizontal circle with vel. v at the end of an inextensible string.If it collides elastically with a straight wall when the string makes an angle 'x' greater than pi/4 with the wall, then its velocity wh ...

Show that a mirror in the form of an ellipse with a point object at one focus will produce an image at other focus. ...

A block is placed on an inclined plane of angle 37 .What must be the frictional force b/w block and incline if block is not to slide along incline when incline is accelerating to the right at 3 m/s2. ...

Three large identical conduction plates of area A are closely placed parallel to each other as shown ( the area A is perpendicular to plane of diagram).The netcharge on left,middle and right plates are QL,QM,QM respectively.T ...

A uniform rod is made to lean between rough vertical wall and the ground.Find the least angle at which rod can lean without slipping.coefficient of friction between rod and wall is 1/2 and rod and ground is 1/4 ...

in a cyclotron if we accelerate an electron its mass begins to increase according to the formula→M=M initial/√1-v2/c2....so if v electron →c...then the mass of the electron →infinity....but how can a particle with inf ...

If the molecules were not allowed to collide with each other, would you expect more evaporation or less evaporation? ...