# Recently Active Physics Questions

• Traditionally been weak in this part of mechanics...pulley problems samajh aate they magar usse zyaada nahi. Q. A hinged construction consists of three rhombuses with the ratio of sides 3:2:1 . Vertex A3 moves in the horizont ...
replied2017-01-07 17:27:08
• A cylindrical vessel of radius r containing a liquid spins continuously with angular velocity Ï‰. Find the pressure at the radialk diatance r from the axis. Take P1 as atmospheric pressure..... ...
replied2017-01-06 12:15:26
• The kinetic enegry of a particle moving along a circle of radius R depends on the distance covered a T=as2,where a is a constant.Find the force acting on the particle as a function s. ...
replied2016-11-23 22:18:32
• This is another problem from IE Irodov that i din solve Two protons move parallel to each other with an equal velocity v=300km/s. Find the ratio of forces of magnetic and electrical interaction of the protons. ...
replied2016-10-08 09:43:26
• 4 identical balls of radius R and mass m are lying in a gravity free space. The balls are in contact and their centres are forming vertices of a square of side 2R in horizontal plane. One identical ball travelling vertically ...
replied2016-09-27 09:10:04
• 2 mirrors are inclined at an angle Î¸ as shown in figure.Light ray is incident parallel to one mirror.The ray will start retracing its path after the third collision if: a)Î¸=45Â° b)Î¸=30Â° c)Î¸=60Â° d)all three *Image* ...
replied2016-08-18 19:42:18
• n identical waves each of intensity I interfere with each other.The ratio of maximum intensities if the interference is (i) coherent and (ii) incoherent is a.n^2 b.1/n c.1/n^2 d.n ...
replied2016-03-23 16:11:40
• A parallel plate capacitor of area 60cm^2 and separation 3mm is charged initially at 90 micro coulomb. If the medium between the plates get slightly conducting and the plate loses charge initially at the rate of 2.5 *10^-8 C ...
• A drinking straw of length 3a/2 and mass 2m is placed on a square table of side 'a' parallel to one of its sides such that one third of its length extends beyond the table.An insect of mass m/2 lands on the inner end ...
replied2016-01-11 02:53:51
• An Ice cube of mass 0.1 kg at 0 degree C is placed in an isolated container which is at 227 degree C. the specific heat s o fthe container varies with temperature T according to the empirical relation S=A+BT. where A=100cal/k ...
replied2015-12-31 22:27:27
• in adiabatic compression decrease in volume is assosiated with a)inc in temp n decre in pressure b)decr in temp n incre in pressr c)decre in both d0inc in both ...
replied2015-10-19 09:22:01
• *Image* A block is dragged on a smooth plane with the help of a rope which moves with velocity v shown in Fig. The horizontal velocity of the block is a)v b) vsinÎ¸ c) v/sinÎ¸ d) v/cosÎ¸ ...
replied2015-10-19 09:13:11
• What is the magnitude of magnetic field at centre O of loop of radius âˆš2 m made of uniform wire when a current of 1 A enters in the loop and taken out of it by two long wire as shown ...
replied2014-11-06 20:27:58
• An isolated conducting sphere of radius R=6.85cm is given a charge of 1.25nC. What is is the radius R0 of an imaginary spherical surface such that half of the stored potential energy lies within it ? ...
replied2014-11-06 20:19:04
• shadow is formed by ______________ objects transparent translucent both of them none of these Your Answer b Correct Answer d How can the answer be none of them ? Transculent objects form a light shadow and transparent objects ...
replied2014-09-05 20:15:55
• The horizontal and vertical distances traveled by a particle in time t are given by x = 6t and y=8t-5t^2 . If g=10m/sec^2 , then the initial velocity of the particle is a) 8 m/sec b) 10 m/sec c) 5 m/sec d) zero ...
• infinite number of straight wires each carrying current i are equally placed as shown in the fig. adjacent wires have curent in opposite direction. net magnetic field at point p is *Image* a. Î¼i ln2/4Ï€ 3 a k b. Î¼i ln4/4Ï€ ...
replied2014-09-02 00:47:43
• Why is it that we never consider internal forces while considering a particular system? Explain in detail. ...
• 1) Explain why it easier to pull the roller than to push it with the help of a diagram. 2)A horse cannot pull an empty cart in space. Why is it so? Explain in some detail. ...
• 1) Explain why it easier to pull the roller than to push it with the help of a diagram. 2)A horse cannot pull an empty cart in space. Why is it so? Explain in some detail. ...
• I have two questions of friction : 1)Why is the coefficient of friction never equal to 1 or 0,but always between 0 and 1? What will happen if the coefficient of friction is EXACTLY 0 or 1? Please explain in some detail. 2)Pol ...
• The device used for measuring potential difference is known as _____________. a) potentiometer b) ammeter c) galvanometer d) voltmeter ...
0·0· #Physics
• what is the order of human mass ...
• The velocity-time graph of a body is shown in figure. The displacement covered by the body in 8 seconds is *Image* a) 10 m b) 9 m c) 24 m d) 30 m ...