Recently Active Physics Questions

The sum of two vectors A and B is at right angles to their difference.Then (a)A=B (b)A=2B (c)B=2A (d)A and B have the same direction ...

Four forces of magnitude P,2P,3P and 4P act along the four sides of square ABCD in cyclic order.Use the vector method to find the resultant force. ...

Q : The potential in a region varies as V = 4x2. Find the charge (in C) enclosed by a cube of side 1 m having its center at Origin. ...

Raindrops are falling with a speed of 5 m s -1 at an angle of 37° with the vertical. A man is climbing down a plane of inclination 30° with the horizontal, holding the umbrella vertically up to protect himself. Find the spe ...

N concentric thin conducting shells having radius R , R/2 , R/22 , ...... is placed . N th shell is earthed . if Q charge is given to the outer shell , find the charge on the inner most shell . ...

*Image* *Image* ...

can any one explain me the quantum confinement effect ? ...

1 )(6.6.6.6....6)2+(8.8.8.8.8......8)2= where each of the number contain n digits ? 2 ) the sequence 1,2,2,4,4,4,4,8,8,8,8,8,8,8,8........where n consecutive terms have the value n then 1025th term is ? plz kindly post detail ...

Hey friends please tell me which edition of Resnick ,Halliday and Walker I should buy for understanding concepts only and not for practice for 11th class. ...

I am in 11th class and looking for the best edition of Resnick , haliiday and walker for understanding concepts. ...

2 ends of a train with constant accelaration pass a certain point with velocity u & v, find with what velocity with which the mid point of the train will pass the same point ???? Is the answer is (v2+u2)/2 ???? ...

How does our phone make out that this much % of battery is left, any method you know, pls share, no answers found till now please.... ...

A metal sphere of radius R is charged to a potential V . FIND THE ELECTROSTATIC ENERGY STORED IN THE ELECTRIC FIELD WITHIN A CONCENTRIC SPHERE OF RADIUS 2R? ANSWER GIVEN- 2πƐ RV2 MY ANSWER-πƐRV2 :P ...

Q. A slightly conical wire of length L and end radii r1 and r2 is stretched by two forces F, F applied parallel to length in opposite directions and normal to end faces. If Y denotes the Young's modulus, then extension produc ...

*Image* The I-V characteristics of a metal wire at two temperatures is shown, then a) T1>T2 b) T2>T1 c) T1=T2 d) The relation may vary ...

A 40 kg. mass hanging at the end of rope of length 'l' oscillates in a vertical plane with an angular amplitude 'x'. What is the tension in the rope , when it makes an angle 'y' with the vertical? If the breaking strength of ...

A particle slides from the top down the outside smooth surface of a fixed sphere of radius 'R'. When the particle is at its highest position, what velocity in the horizontal direction should be imparted to it , so that it lea ...

Two bobs of masses 6m and 10m are attached to the two ends of a light inextensible string which passes over a frictionless ring at O. The lighter bob describes a horizontal circle about the heavier bob(which remains stationar ...

*Image* ...

some good questions given in the sample paper of kvpy ...

Hi all, get relevant and useful flash animations in physics at http://www.mksfoundation.com/flashlets.aspx and lot of other free stuff for JEE preparation at this site. ...

Hi all, get relevant and useful flash animations in physics at http://www.mksfoundation.com/flashlets.aspx and lot of other free stuff for JEE preparation at this site. ...

Hi all, get relevant and useful flash animations in physics at http://www.mksfoundation.com/flashlets.aspx and lot of other free stuff for JEE preparation at this site. ...

Hi all, get relevant and useful flash animations in physics at http://www.mksfoundation.com/flashlets.aspx and lot of other free stuff for JEE preparation at this site. ...

Hi all, get relevant and useful flash animations in physics at http://www.mksfoundation.com/flashlets.aspx and lot of other free stuff for JEE preparation at this site. ...

Hi all, get relevant and useful flash animations in physics at http://www.mksfoundation.com/flashlets.aspx and lot of other free stuff for JEE preparation at this site. ...

Hi all, get relevant and useful flash animations in physics at http://www.mksfoundation.com/flashlets.aspx and lot of other free stuff for JEE preparation at this site. ...

10 v.s.d. =7 m.s.d i msd =1mm given that 7th v.s.d. coincides with 5 m.s.d.. find: i) l.c. ii) reading. (in the above ques. the l.c. is coming greater than the reading ..why is it happening so in the above case ?? ) ...

*Image* getting totally confused ! plz help. ...

a) suppose we tie a ball with a string and rotate it keeping its other end tied with one of our fingers then the only external force acting on it is the tension. Which force then cancells 'mg' acting vertically downward? b) i ...