Recently Active Physics Questions

DETERMINE THE DIRECTION OF FRICTION FOR PURE ROLLING MOTION OF THE RING: Please give reason. *Image* ...

hey fr9ds long time i posted any question so here is 1 lets take a rod rotating abt a hinge so my question is around which pnt is the rod rotating abt its hinge or abt the com it can also be said to be rotating abt the com as ...

A disc initially at rest, starts rotating eith uniform acceleration.During first 5 secs it describes an angle \beta .During next 5 secs d angle described is \gamma . Find d value of \frac{\gamma }{\beta } . ...

A long metal rod of length l and relative density ∂ is held vertically with its lower end just touching the surface of water.The speed of the rod when it just sinks in water is given by a)√(2 g l) b)√(2 g l ∂) c)√(2 ...

*Image* .....the angle of the prism is 1/Ï€ ...disscuss the rays coming out of the prism ...

*Image* Two blocks A and B of masses 2 kg and 1 kg respectively are conected as shown and are at rest. The pulleys P1 and P2 are light and frictionless. A shell C of mass 1 kg moving vertically up with velocity 10 m/s collide ...

Pls explain the following VERY BASIC question with REASON / CONCEPT involved in it , the answers are given.... 1. One brass plate is inserted b/w two charges.The force between the two charges will : i. Remain the same ii Incr ...

*Image* Find the VA-VC ...

find the magnetic dipole.....do show the method *Image* ...

*Image* suppose there is fluid filled along the length of the tube and density is p angular velocity is w area of cross section is a and there is an orifice at the end find the velocity of the fluid coming out!!! ...

Consider 2 IDENTICAL capacitors . One is fully charged and other is fully UNcharged . If both of them are directly connected by a wire of zero resistance , will any charge flow from the charged capacitor to the other ? [ this ...

In a bid to get the basic concept behind capacitors [ I'm weak in this section of electricity and magnetism [17]] , i'm posting a self-made question.CAN ANYONE PLEASE ANSWER TO THESE 3 QUESTIONS : Question : In all the given ...

Young's double slit experiment is performed in a liquid. The 10th bright fringe in liquid lies where 6th dark fringe lies in air. The refractive Index of the liquid is approximately, A) 1.2 B) 1.6 C) 1.5 D) 1.8 ...

a manometer contains a liquid of density p. the difference inthe levels when the manometer rotates with a constant angular velocity w about one of its vertical limbs is?(the two limbs are separated by distance 'a') a)w2a2/2g ...

A long rod has one end at 0°c and other end at a high temperature. The coefficient of thermal conductivity varies with distance as K=K0(1+aX) where K0=102SI unit and a=1m-1.At what distance from d 1st end d temp. will b 100 ...

A BODY TRAVELS UNIFORMLY A DISTANCE OF (13.8±0.2) m IN A TIME OF (4.0±0.3) s. THE VELOCITY OF THE BODY IS. ...

An object is placed at a distance of 10 cm in air from the front surface of a thick glass slab of thickness 6 cm whose black surface has been silvered.The image is formed at a distance of 14 cm from the polished surface . The ...

*Image* Here it is the form of prism..and distance between DE and AH is neglibly small. 1.The direction of magnetic field at the geometric centre of three dimensional prism shaped coil will be 2. if an external magnetic field ...

The coefficient of friction between an insect and a hemispherical bowl of radius r is \mu . The maximum height to which the insect can crawl in the bowl is A) \frac{r}{\sqrt{1+\mu ^{2}}} B) r\left[1-\frac{1}{\sqrt{1+\mu ^{2}} ...

How to find out the field at a point 'x' distance above an infinite sheet of surface charge density 'd'? ...

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A spherical small ball of density p is gently released in a liquid of density ∂ (p > ∂ ) . The initial acceleration of the free fall of the ball will be : a) p + ∂/p g b) p - ∂/∂ g c) p - ∂/p g d)g the answer g ...

A piece of ice with a stione frozen inside it is floating in water contained in a beaker. When the ice melts the level of water in a beaker a)rises b)falls c)remains unchanged d)falls at first then to the same height as befor ...

A cube of ice is floating in a liquid of relative density 1.25 contained in a beaker. When the ice melts , the level of the liquid in the beaker A)rises b)falls c) remains unchanged d)falls at first and then rises to the same ...

*Image* A fountain consists of a small hemispherical rose (sprayer) which lies on the surface of the water in a basin, as illustrated in the figure. The rose has evenly distributed small holes in it, through which water spurt ...

Example 9.4 - Suppose while sitting in a parked car, you notice a jogger approaching towards you in the side view mirror of R = 2 m. If the jogger is running at a speed of 5 m s–1, how fast the image of the jogger appear to ...

Monochromatic light of wavelength 400 nm and 560 nm are incident simultaneously and normally on double slits apparatus whose slits separation is 0.1 mm and screen distance is 1m.Distance between areas of total darkness will b ...

The energy released by the fission of uranium nuclei would be higher if the uranium nucleus split into three parts rather than into two parts. Despite this, the fission of uranium only produces two nuclei. Why is this? ...

*Image* ans is a) but shouldnt it be b ???? ...

Q: A light rod is placed on a smooth horizontal surface . Initially , the end A begins to move vertically upward with constant velocity v0 and centre of the rod upward with a velocity v0/2 having downward acceleration a0/2 , ...