Recently Active Physics Questions

Ques1) A clothesline hangs between two poles. No matter how tightly the line is stretched, it always sags a little at the center. Explain why. Ques2) A block rests on an inclined plane with enough friction to prevent it from ...

The masses and radii of earth and moon are M1, R1 and M2, R2 respectively, their centres are r distance apart, find minimum speed with which particle of mass m should be projected from a mid way between 2 centres so as to esc ...

IN THE WEBSITE,ASSIGNMENTS ARE WRITTEN EVERYWHERE,BUT HOW TO ACCESS THEM?PLEASE TELL ME THE WAY TO CORRECTLY USE THIS SITE. ...

a vertical cylinder of height 100 cm contains air at a constant temperature. The top is closed bya frictionless light piston. The atmospheric pressure is equal to 75 cm. of Hg. Mercury is slowly poured over the piston. find t ...

*Image* Ques1)A mass M1 lies on a fixed smooth cylinder (Above figure). An Ideal string attatched to M1 passes over the cylinder to mass M2. Show that the system is in equliibrium if Sin A = (M2/M1) Ques2) A body of mass m is ...

*Image* a projectile is fired with intial velocity of 240m/s at a target B located 600m above the point A and at horizontal distance of 3600m , negelecting air resistance , find the value of angle(theta) at which it is projec ...

A uniform rod of mass 'm' and length 'L' is made to stand vertically on one end.What is the potential energy of the rod in this position? The answer is pure concept based.I have a few more better questions but those needs me ...

1.Why is electricity obtained on heating a thermocouple? 2. Can copper and iron be combined to make a thermocouple? 3. Is there any other scale of temperature other than the celsius, farengeit and kelvin scale? 4. What is the ...

what is thermal agitation? what is it's effect over a dielectric as the magnitude of electric field changes?? ...

what is resolving limit of eye????????/ ...

*Image* In the figure mass m1=i kg and m2 = 4 kg. Find the mass M of the hanging block which will prevent the smaller block from slipping over the triangular block. All the surfaces are frictionless and the strings and the pu ...

A wedge of inclination theta is fixed with a frictionless pulley on its top.A light inextensible rope goes over the pulley.One of its ends is attached to a fixed wall.The other end is attatched to a small block of mass m kept ...

a very simple question: why do molecules of highly polar molecules have energy even at the absolute zero? ...

This is not my doubt. This is for others to try out: try both [1] *Image* ...

Q1. is [dv/dt]=[dv]/dt Q2. is it possible to have [dv/dt]=0 but [dv]/dt ≠0 give reasons for your answer [] denotes modulas of the function ...

which of the following quantities do not change when a resistor connected to a battery is heated due to current ? (a)drift speed (b)resistivity (c)resistance (d)number of free electrons ...

a uniform chain of mass M and length L is held vertically in such a way that ts lower end just touches the horizontal floor. The chain is released from rest in this postion. Any portion that strikes the floor comes to rest. A ...

*Image* a projectile is fired from the edge of a 150 m cliff with a horizontal velocity of 180m/s at angle of 30° with the horizontal , negelcting air resistane ans the followin 1.the horizontal distance from the gun to the ...

The density of liquid varies as ρ=ρo(4- 3h/ho). Here ho and ρo are constants and h is measured from base of container.A solid block of small dimensions whose density is 5ρo/2 and mass is m is released from bottom of tank. ...

A system consists of 6 parallel identical plates placed un-equal distance apart. A charge q has given in plate no.3 . The charge developed in outer surface of plate 1 & 6 is ?? ...

A person A at x=0 is shooting bullets along positive x axis at a speed of 100m/s at the rate of 100 bullets per second. A cart is moving along the x axis with a speed of 4m/s. Find the number of stones gathered by the person ...

A point moves along a circle with its tangential velocity vt=0.50 m/s2 .Find the total acceleration of the point at the moment when it covered the n-th(n=0.10) fraction of the circle after the begining of the motion? ...

What is the reason of the formation of coriolis effect in the earth? ...

a cubical block of wood of edge 3cm floats in water.The lower surface of cube just touches the free end of a vertical spring fixed at the bottom of pot.Find max weight that can be put on the block without wetting it.Density o ...

There is an air bubble of radius 1mm in liquid of ST=0.075 N/m and density 1000 kg/m3 .The bubble is at the depth 10cm below free surface.By what amount is the pressure inside bubble greater than the atmospheric pressure? ...

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

Why is β=2α and γ=3α?? ...

what is the really the physical meaning of Irms value of the current???? ...

*Image* pls solve this beginners ...

A hoop of radius r rolls over a horizontal plane with constant velocity v without slipping. The velocity of any point on the hoop t seconds after it passes the top position is ...